you don't think kids should play sports? that seems like an unusual view and am kind of curious why you would think that.
... but I did make myself an outcast as I was growing up as I would rather use my PC (for programming) than go outside.
It is the default sport because the barrier to entry is basically having a ball. Random rocks, backpacks, whatever you have can serve as the goalposts.
Most other sports require other equipment too (volleyball needs the net, basketball the hoop, etc. etc.).
It's also easy to understand, and being the most popular sport by far in most countries, allows for an easy appropriation to a community and sense of belonging.
> was forced myself to play it in my childhood
So you're just trauma dumping your childhood issues?
I've literally seen kids unable to speak with each other because of different languages able to join a match :)
I was terrible at football as a kid so it's not like it did much for me, but one cannot deny how universal the game is.