A young hacker shouldn't be told to set aside the computer and play Little League baseball.
And what I meant there, and thank you for joining issue with this so that the issue is clear to onlookers, is that no child should be forced to DROP something personally important and educational for them solely to fit in with what everyone else is doing. In actual fact (and I think a reader who used the search function on HN could find examples of me saying this) I encourage all of my children to participate in team competitive sports. Because of the healthy developmental nature of our local youth soccer club, all four of my children, from my hacker son who now lives in New York City to my daughter, have played "travel" competitive soccer through that club. All three of my boys have qualified for the Minnesota state championship tournament at various age and competitive levels, and my second son has won a state championship with his teammates. So I by no means disdain sports. I'm very proud of having four children who all have achieved more in sports than either of their parents ever did. (Sports were not emphasized in my upbringing in my family, nor in my wife's upbringing in her family.)
I do indeed promote activities for my children that provide "well-roundedness" and especially activities that provide commonalities with other young people growing up in the same time and place. It's just that I don't do that at the expense of my children having a LOT of time to pursue their own interests. (That's why we homeschool--to have the schedule flexibility to allow a both-and of deep involvement in something meaningful to each child and broad involvement in things that build connections with other people.)
Thanks for checking. I FULLY agree with you, based on my own experience, that men growing up in the United States are well advised to have sports involvement. That helps them have a lot to talk about with other men. It's not strictly necessary, but sports involvement is awfully helpful.