Nice assertions, but where’s the content of your post? What’s your opinion here based on those two things? Those are just two statements, but do you believe things are different now than historically or are you arguing it’s the same as it ever was, or something else?
I’m probably not old enough yet to share my opinion on societal change across generations, I was a kid until recently.
Do you think the population of the US is all from immigration and rich people?
(A relative worked out our family tree. Lots of families with 8 kids in them.)
What amuses me is that once you’ve worked out the function to have a kid, it’s easy to have another.
In theory there should be tons of childless people and some balancing number of 10+ kid families. Then the average numbers work out, everyone is from a large family, but the means of production are centralized and efficient.