Sideloading, AKA "installing software on your device", is something PCs have been handling just fine for decades. It's fine to warn the user when they're going off the beaten trail, but do not lock them in a cage to prevent them from doing so.
If they ignore the warnings and get scammed because they are unable to identify reputable software from disreputable software, they learn a life lesson. Life goes on. There should be no societal expectation that everyone is prevented from ever taking an action that could bring themselves harm, by preventing them from taking actions at all.
There are entire classes of people who have simply given up on PCs and only use a phone, so I would call that substantial evidence that PCs have NOT "been handling [it] just fine." For these folks, PCs are a total failure; a dead end. A danger zone to be avoided at all costs.
If you have a citation that droves of people are abandoning PCs for phones specifically because PCs allow them to install software of their choice, rather than other reasons like the convenience of a computer that fits in their hand, I'd be interested in seeing it. Because that sounds like an absolutely outrageous claim to be asserting as a fact to me.
You can Google it yourself. There are tons of studies showing a decline in technology literacy among younger generations (Z and alpha). Millennials were the peak.
This shows that younger kids aren’t using traditional PCs, at least not to the same degree. They just use phones and tablets. At best they may play games on their PC by installing via Steam. Very few of them are becoming proper technologists (able to install and use any software, script the computer, or write their own software).
No shit. That's completely different from what you claimed, though, which was specifically that people were giving up PCs to become smartphone users because they appreciated the lack of choice that smartphones gave them.
The phenomenon you're talking about now is so completely in another universe that it's insane you would conflate the two. I actually can't finish typing this response properly because it's hurting my head every second I continue to think about your argument. To sum it up really shortly: smartphones universal, required to even participate in society, people now given smartphones from early age, multi-functional as phones, cameras, etc, they fit in your pocket, more than sufficient for normie use cases and in fact more suitable for many use cases that don't entail sitting at a desk at home, computers are specialised tools for specialised functionality that many people have no need for. There are 100000000 reasons why smartphone usage displaces PC usage that aren't because they explicitly abandoned PCs for the crime of allowing them to choose what software to install, which was your claim. Not even having mentioned that globally, 75% of smartphone usage is Android which doesn't lock its users in the cage (for the time being).
Do you think smartphones would be ubiquitous today if they had the malware situation that plagued Windows XP?
I think you overstate how bad said situation was, and to the extent it was a problem I doubt it had any meaningful impact on PC usage rates, and I have not the slightest doubt that such a situation would have had minimal bearing on smartphone adoption. People are drawn to things that offer utility to them, regardless of any downsides. That's why people will happily hand over the entire details of their private life to any internet service that asks it of them, and why the market does not punish any company that has security breaches and loses hundreds of millions of people's personal information. Security and privacy are at the very bottom of a normie's list of concerns in practice, even if they might say they care in surveys. If something is useful to them, they will use it regardless of security and privacy flaws.
Edit: It's also telling that you need to go back to XP to make your case. It's 2025. Security practices have improved a ton to give people more protection from themselves without outright taking away their freedom to make choices.
Also, let's again re-iterate that Android usage outnumbers iOS by three-to-one, so it is clear in practice that people are in fact willing to adopt a phone that allows them to make mistakes (if they try very hard to).
You think smartphones give people fewer choices?
Yes.
Now you have a multibillion-dollar supranational corporation playing judge jury and executioner for any of your choices.
E.g. App Store prohibits adult content (which is not illegal). Prohibits emulators (which are not illegal) [1]. Prohibits or hinders the use of better alternatives to pre-installed apps (Photos, Camera, Maps, Siri) [1]. Removes any and all apps if there's a hint of displeasure from wannabe dictators.
Basically, you don't have your range of choices. You have Apple's range of choices.
[1] Some of these choices are now better on iOS precisely due to Apple losing the fight against governments. They finally allowed emulators after they lost a battle against alternative app stores. They finally gave options to change some default apps (but not all, and not in all countries, see e.g. https://mjtsai.com/blog/2025/03/14/dma-compliance-default-ma...)
Appstore has been the only app store on IOS for nearly 2 decades. And you are saying IOS has been a perfect safe zone, and you cannot lose any hard-earn money on IOS for 2 decades? What a joke.
> There are entire classes of people who have simply given up on PCs and only use a phone
Which actually makes the case for "Apple cannot control what people install on their devices or demand that apps pay them and can't even use other payment providers"
The same can be said about alcohol, yet all you need to do is reach alcohol age in the country you live in, no "license to drink alcohol". Why PCs should be treated differently?
Thank you for your concern, but I need a phone, not a device to manage dementia. I don't see why nobody should be allowed to have the former just because a few people need the latter.
Botnets, rootkits, virus, malware.
That’s how fine PC’s have been doing software.
Search for your preferred PC brand and list of CVEs.
I’ve had Windows / malware roll back a BIOS update to a previous version that had a know (published CVE) remote code execution vulnerability complete with published proof of concept.
There was some point around 15 years ago when it was nearly impossible to download and install Windows software without getting some extra adware and etc. This was true even for 'legit' vendors like Sun and Adobe. (Plus Google would offer up wrapped installers for Firefox, OpenOffice, etc.) Honestly if you thought "things were fine", you were ignoring the Linux/Mac people laughing about it.
"Nearly impossible" is quite a stretch. While it was certainly shameful that it ever became as mainstream as it did, it was a matter of unticking checkboxes in the adware installers, and there was plenty of software out there that did not engage in that behaviour to begin with. At any rate, I didn't say anything about operating systems. You can also install software of your choice on Linux or Mac. I'm not really sure what point you were driving at there.
Point being the only real difference between Windows and Mac was marketshare. (Linux doesn't have an ABI, software predominantly comes from the 'store'.)
Having an app store does literally nothing to prevent adware. Almost all apps currently on the Apple app store or Google play store are adware.
The PC app ecosystem is a tiny fraction of the App Store's, outside of, notably, Steam's locked down closed ecosystem.
Having a single way to pay, subscribe, cancel, browse apps, beta test versions, and update apps, proved to be a huge game changer for making software accessible while also minting millionaires around the world in terms of small development teams.
In 2024, computer software generated around $373b in revenue while mobile apps generated around $522b. Given that smartphone usage is significantly higher worldwide than computer usage (around 2 to 1 ratio), the stats do not really support your thesis that locking down software access to the whims of a monopoly hegemon results in a massive financial boon to application developers. Even if it did, it still would not justify the harm to the end user entailed, but it also just doesn't do what you say it does to begin with.
Incidentally, while looking this up, I discovered that 2/3rds of that $522b in app revenue comes from in-app advertisements. And here somebody was trying to mock Windows for being adware friendly circa 2005. Good lord.