An interesting anecdote that comes to mind is playing old computer games with arrow keys, which used my right hand. I got pretty proficient with this.
Over the years, I (and I imagine many others) switched over to WASD to play newer games with mouse + keyboard, but this meant using the left hand for "arrow keys"
Now I can directly compare how proficient I am with WASD vs Arrow Keys and the result surprised me. I was way worse with arrow keys (right hand) even though back when WASD was becoming a thing I'd rebind WASD to arrow keys because it felt too weird! I would've never imagined back then that WASD could ever feel as natural as arrow keys.
Makes me wonder how much of handedness is truly innate vs learned.
Left-handed individuals living in a predominantly right-handed world possess the capacity to adapt and utilize their right hand effectively. While most right-handed individuals do not exhibit this ability unless they experience an extraordinary event, such as an injury to their right hand, left-handed individuals are compelled to learn how to use their right hand in a right-handed world.
As a left-handed individual who employs a trackpad or mouse with their right hand, stick shifts are also possible, at least in the United States. Furthermore, left-handed individuals can switch-handed, bat from either side, and use both hands equally in a fight. This adaptability may be the reason why left-handedness remains prevalent in combat sports, including swordplay, tennis, boxing, and even wrestling. In certain combat situations, the initial blows are crucial for survival, especially in the past.
In fencing at least left handed fighters tend to get a bit further because there are so few of them they are a lot harder to play against. On a training night a left handed fencer might match up with 10 right handers while a right handed might only see one left hander!
It’s similar in other sports. Around 30% of top cricketers are left handed. It’s 40% for some leading countries.
The “hypothesis presumes that athletes in interactive sports are much more likely to play and practice against right-handed opponents. As a result, these athletes develop both greater familiarity and highly specific skills to anticipate the action outcomes of their right-handed opponents via attunement to crucial perceptual information”
Source: https://pmc.ncbi.nlm.nih.gov/articles/PMC7424046/
> While most right-handed individuals do not exhibit this ability unless they experience an extraordinary event, such as an injury to their right hand, left-handed individuals are compelled to learn how to use their right hand in a right-handed world.
As a person with severe hemophilia in the third world, where the condition is very under-treated (no prophylaxis, very little clotting factor and sometimes none), I've grown up facing this issue with the dominant arm being out of commission due to a bleed for days at a time. I gradually learned to do almost everything with the left hand: brush my teeth, shave, eat, shower, type with one hand (autocompleting IDEs help), even drive a stick shift (using the right hand to hold the wheel briefly while shifting, technically illegal I'll admit).
It's not that difficult to adapt. The barriers are mostly mental because it feels awkward at first. There are some dexterity issues but if you don't mind going slowly, you can get by.
Just sharing my experience, not meant to undermine the challenges faced by left-handed individuals in a right-handed world.
I'm right-handed, I'm pretty sure of that. But it's also an observed fact that if there's something I'm not used to to yet then it doesn't really matter which hand I start doing whatever it is with, if it's the right hand that'll be the preferred hand for that activity in the future, or if it's the left hand then that'll be the one. Things I do "both ways" I can do.. both ways.
I remember in elementary school being amused by the idea of handedness so I decided to practice writing with my left hand as well. I'm not great at it but even to this day I can write legibly with my left hand from that little bit of practice as a child.
Anyone can get much better at using their non-dominant hand (if they have one) with just a bit of practice. The effect is much much stronger when you do so as a child.
Generally agreed, except for the "Anyone" - because people really are different. I'm familiar with a few people (from very young to adults) who are extremely one-handed. The other hand is nearly useless, except for holding and supporting. Those individuals will typically turn newspaper pages or book pages using their right hand (if they're right-handed, and one guy told me that he didn't trust his left hand with a fork to actually hit his mouth, so he used a knife+fork the opposite way of most right-handed people. These people are in a minority, but they exist.
Then there's guitar.. some, or actually most left-handed people can learn to play a right-handed guitar if they simply start with a right-handed guitar. But there are also some people (some of them very well known) who tried learning the guitar for a very long time, and couldn't. Until they switched to a left-handed guitar. (Why it's natural to actually use the left hand for something which looks complicated - fingering, and the right hand for something simple - strumming - has been discussed forever. Apparently that's because a right-handed person typically has better timing in their right hand, and that's why it matters).
Children have better neuroplasticity but worse persistence than adults.
As an adult I just practiced writing with my left hand loads for basically no reason, it's not that useful, but I still did it for some reason. Now I can write illegibly with either hand :)
I realized at some point as a leftie I could trivially learn to write a mirror image of what everyone else was writing so learned to write backwards. Since the motions are exactly what others do it’s actually easier in a lot of ways for me. Left handed writing is all scrunched up and annoying, and I got constant smudges on my hand. Frixion ink pens are the only pen I’ll buy because they don’t smudge at all. My guess is it’s actually because it’s heat reactive so it just vanishes on skin, but that works for me! (It doesn’t disappear on the page except the time I put a hot bowl of oatmeal on my hand written deployment reminder notes, which was a bit of a surprise. Took me about an hour to recover gathering data, haha).
I also discovered the mirrored writing thing lol and it made me wonder what ambidexterity is since if ambidextrous people could presumably write non-mirrored with the other hand, aren't those completely different motions that neither hand has had any practice with?
I’m left handed and never understood left handed mice at all. I write with my left and swing and kick left handed, but all gaming stuff has always been the same way anyone else does. I’m pretty sure up down left right switching to wasd is a function of that setup being more comfortable with the mouse to the right of the keyboard, correct?
correct, and I think games which needed action keys in addition to arrow keys (but no mouse) preferred arrow keys on the right so the left hand could handle the other moves and stuff.
I write with my left too but using right handed peripherals feels natural. I also use my phone right handed.
For this sort of motor skill, it’s definitely learned. For stringed instruments, for example, it’s the left hand which has the more finely managed manipulation than the right (it’s interesting to note that only guitar-family instruments are commonly made in left-handed versions, although some of that may come down to logistics of string ensembles where having one left-handed violin in the violin section would cause a bit of chaos with colliding bows that is less of an issue with guitar ensembles where there are fewer musicians and they’re less tightly packed in the performance space). Likewise, the fingering on woodwind instruments doesn’t really favor one hand over the other. In contrast, brass instruments are decidedly right-handed (I suppose one might be able to manage a trumpet left-handed, but I’ve never tried. I don’t think other brass instruments could be fingered with the left hand at all.
This left-hander did, guitars can be used/adapted too if you’re left-handed, you might have to adapt like a certain well known person named Jimi Hendrix…
The French Horn is played left-handed.
Something super simple and revealing is try pressing on the brakes with your left foot.
That's because after you've learned to drive, everything the feet do is muscle memory. You don't consciously adjust the pressure (you just believe you do..), so switching around the pedals will need re-learning. And indeed it's common among rally cross drivers to learn to use the left foot with the brake pedal as well.
A few of my relatives who grew up on a farm drives that way (right for gas, left for brakes)