to be good at paintball (unless your one of the gifted few born with a marker in their hand) you need to play/practice alot, to do that you'll need lots of money, cos everyone knows paintballs not a cheap sport. To get the money you need a descent paying job and must dont get that til their around 20ish. Add a year or 2 to get good and tadaaaaa, your 22-23yrs old tournament player
my theory is slightly flawed and there are some exceptions, but hey, **** happens