When you get AV'ed, I'm sure there will be alot more discussion for you to make.. At this point in life, talking about this topic at 14 would only make you even more want to buy it.. I suggest you wait a few more years, focus on school work then talk more about this when you're AV'ed at 18th birthday.
Personally I wanted to get into airsoft back in Grade 8 (14 years old) but I never discussed about this until now that I'm legal for this stuff. Time flies by!
But I'm buying the Colt M4A1, I'll let you know about what I feel later!