I don’t believe it’s purely “screen time” but rather a mix of what is on that screen as well as the standard that students are kept on at school.

I used to come back from school and spend my day in front of the computer (crt screen and everything) but my screen time was much higher quality that modern day kids. Also, back in my day there was no moronic “no child left behind” kind of policy: if you needed to repeat a year of school, you just did. It felt harsh in the moment but looking back oh boy it was the correct thing to do.