Yet having family who smoke leads to kids who take up smoking. It's not guaranteed on the individual level, but statistically very significant for the population. The same goes for domestic violence, excessive drinking, and, of course, smartphone use.
Anecdotal observations of exceptions don't really make a counterpoint to the general (and well documented) trend.
https://www.nih.gov/news-events/nih-research-matters/how-sec...
Adults are children in first place, and children model themselves a lot from parents.
There's certainly a significant randomness at play, and it's admirable when adults manage to deviate from problems of their parents, but exposure to them ultimately presents a high risk factor, if one wants to put in mathematical terms.
Screen time is actually a very concrete problem in the context of parenting. There's again significant randomness at play (I myself grew up watching lots of TV), but at the end of the day - literally, what happened during a given day - the difference in educational quality between households with and without¹ screens, is night and day².
¹=with "without" I mean extremely limited quantities of screen (no tvs, no internet, not checking out smartphones etc.etc.).
²=there is certainly a spectrum of screen time content in terms of quality, but the vast majority is garbage.
Counterpoint: my partner's father was an alcoholic who abandoned her after her mother died and ended up homeless for two decades, her aunt was also an alcoholic. She didn't grow up to be an alcoholic and doesn't drink alcohol. I don't drink alcohol. Most adults are capable of managing themselves.
> I've seen really horrible results of screen time overuse on a teen girl -- basically, a lively and clever 7yo developed into a 18yo with no social skills whatsoever, and the habit to even scroll her phone while brushing teeth!
Could equally be undiagnosed autism and/or ADHD, which is infamously underdiagnosed in women.