Do people normally teach their kids the rules of sports?
Unfortunately for me, I was born with very poor vision that went undiagnosed for most of the first decade of my life. One of the things I seemed to completely miss out on was how to actually play ball sports. Honestly, I could really care less myself, except for the fact that PE/Gym is now a requirement for high school graduation. Lucky me, I graduated a year before they implemented this policy in my school. I would like to better understand why society thinks it's so damn important to learn sports that nobody ever even tried to teach me.
I'm still trying to figure out how people normally learn the rules of ball sports. When I was a kid and I told the adults I didn't understand how to play, they all would just say something simple like "just go throw the ball and have fun". Ok, sounds good, but that doesn't explain where to throw the ball, who to throw it to, or even what each different team member's different objectives are.
Apparently, because I wouldn't go out and play ball sports as a kid, people assumed that I was either lazy or uncoordinated, but I can ride the hell out of BMX flatland tricks, which makes these false assumptions completely null and void. Of course, that's a sport with only two main rules - do something really cool and DON'T FALL OFF THE BIKE!
Anyways, while everyone thought I was lazy or uncoordinated or whatever, they would offer instead for me to sit on the sidelines and keep score - OF SPORTS I DIDN'T EVEN VAGUELY UNDERSTAND! How in the hell can I possibly score something I don't even know the rules and lingo to?
So, what I'm wondering is if it's normal for everyone (including schools) to just expect their kids to know how to play something they've quite possibly never engaged in before, even so far as to require it for graduation, or does someone normally try to explain the basic rules once or twice before sending kids on an otherwise unknown mission to try to win a silly game?
This interests me mostly for sake of any children I might have someday, and basically applies to any ball sport. In all fairness, I've tried looking over official rules to various sports myself, and it's like trying to read a G-D encyclopedia! With so many details to all the rules and crap, I'd figure there should be some sort of verbal/written education somewhere along the way.