Funny how most articles mention family as the only acceptable thing to do outside of work, Even, or especially when you're young, there's more to life than shaving milliseconds from that query code. Working OT should not only be discouraged, but disallowed to force people into hobbies or things they care about - watching loads of TV or whatever they feel like as long as it's not homogenous. We know it in biology and other science that too sterile ecosystem is not good - you need diversity and variety. If all you do is code or later code and have kids, then on a global scale it leads to a really dull society.