My comment wasn't meant to agree or disagree with these statements, just to comment on how I find it interesting that people are making assumptions or defining

My comment wasn't meant to agree or disagree with these statements, just to comment on how I find it interesting that people are making assumptions or defining screen time to suit their own opinions. As for whether its obvious: maybe, but there are many cases where something seems obvious (certainly to laypeople in the subject) but that are actually flat out wrong. So, as someone who hasn't studied these things, I say, yes, it seems obvious, but just because I think its obvious, doesn't necessarily mean its true.