[Double_a_92]

I guess their point was to balance the times. I.e. Yes, excessive socializing would also be bad if you start neglecting everything else.

[TeMPOraL]

Excessive socializing is the default, though - if kids have nothing better to do, they "hang out".

[tomp]

Is it? When I had nothing to do, I read or used the computer (for games, and then increasingly for programming).

[TeMPOraL]

Me too. Because I had essentially unlimited screentime. But you and me are the exceptions. Think of people you remember from primary and secondary school.