True, at 14 you won't find anywhere to play. 90% of games are 18+, and the remaining 10% 16+; and there are very, very few exceptions to that.
Not only that, very few if any games allow a novice on the field with a high powered rifle.
Best bet is to save your money, and then in 4 years dump a lot of it into a really awesome starting kit.
"Someone in a Prius tried to race me at a stop sign the other day. I couldn't believe it. I had him for the first 100 feet or so but I can only walk so fast."