[AlbertCory]

"sports" does not imply "organization, with adults."

I never played any organized football, but I played a ton of informal touch football, and very occasionally tackle.

Same with most baseball: a bunch of us kids got together and played. In most of the world, it's football ("soccer" as Americans call it).

[Loughla]

Yes, it does. In the US, in today's middle class society, sports means structured, competitive play organized by adults.

Pick up games are dead for vast, vast portions of the country.

[AlbertCory]

I'm sorry, you're totally wrong. I walk past some basketball courts every day, and there are always games going on. At the middle school, the kids play volleyball, and also spike ball:

https://www.wikihow.com/Play-Spikeball

I also occasionally see pickup touch football games, and of course soccer. Baseball: maybe you're right, only adults play that anymore.

And let's not forget pickleball. Contrary to the stereotype of its being an elderly sport, go look at a court sometime: people of all ages play it.