Getting a family member that doesn't get involved himself is considored circumventing the AV system. It defeats the purpose of the system entirely if we let that fly by. Think about it.
Clear guns are available, just make do with that until you're of age. Hell, are you even old enough to participate in games local to you? Thats more important than owning the gun. Unless you're fine with staring at your newly aquired gun for two years until you're finally able.
Get the gear, get all the misc things. But hold off on buying the gun until you're of age and ready to play in games, and not in your back yard with freinds. Airsoft guns evolve quickly over a years period, and what we have in selection now will only be much, much more in the future.