DEDSEC, I would usually agree with you. However, as an under 18, I feel the need to point out that not everyone under 18 is a complete cockfag. If there was a minimum age, I'd set it at around 15 (as my local site does) which means that they are mature enough to not be absolute dicks (like some 12-13 year olds are).
I was put in a team and I could safely say I was the only one over 18 (38 for those who don't know). There was a group of four who kept shooting each other, which got them out as team hits count..
There was another kid who obviously played too much CoD and kept sprinting into enemy position. Another, kept screaming that other players were cheating when it was obvious his hop up was completely off. Another, asked me for a grenade as you had to be over...