I'm not calling you a liar but if that is the case you are one of the few. Bottom line is more developed brains and motor skills equals better problem solving, understanding of difficult concepts, and faster reaction time. That's just fact. Doesn't mean everyone under 16 is bad at the game or that there aren't 10 year olds who can wipe the floor with most players of any age. The fact remains you are more likely to run into your average kiddos who are not going to be very skilled and have extremely low maturity levels. It's just easier to avoid kids as a whole than test out each one to see if they happen to be that video game prodigy. It's nothing personal. We just prefer to play with other adults. For the record I most certainly don't condone the abuse mentioned in the OP. If someone who would rather not be ends up in a fire team with some kids they should politely step out not harass them. Unfortunately as you will learn growing up...people are ass holes and if they have to talk trash to little kids online playing a video game you probably have more going for you in your young life than they ever will in the rest of theirs.

Same

Yes, experienced players can easily have an edge over inexperienced ones, and there are some younger people who are very, very good at video games. Not all young people are unhelpful, but I prefer not to play with the ones who are.

So please don't judge automatically because of voice, wait until you see them in action before kicking