Do tell me. Which team sport has teams in groups of 10 ppl? Because football team made of your kids is the standard in fiction, but afaik that's a different umber
In Indiana High School Basketball teams are usually limited to a maximum of 10. At least that was the case when I was in high school a little over 40 years ago. Five people on the floor per team, of course, with the rest for swapping out for rest, injury, foul outs...