My son is in first grade, and I'm focused on doing my best to prepare him for a healthy and happy life as a young man and adult. I've been put off a little bit my some of my friends with older kids and how many have them in sports/club teams year round and the super busy schedules and traveling they do all the time. I'm older (48) and as a kid I played a bunch of sports but had enough "down time" to enjoy hanging out with friends and doing other things.
But I now see the side benefits of a heavy schedule with sports. Constantly being with other kids outdoors all the time and keeping busy. Down time these days is not nearly as healthy as it was when I was a kid. Video games, phones, YouTube algorithms, etc. can turn them into zombies or anti-social behavior. And sports club teams/busy schedules keep you from falling into that trap. Being able to just go outside in the neighborhood and fucking around til sun down isn't happening in very many places these days.
The reality is parenting is a MUCH harder job now than it was 30 years ago and we have to be way more intentional. My parents are awesome and I love them, but there was no heavy lifting. They could just trust the overall environment we lived in back then. That world doesn't exist anymore.