I havent seen any bnet kiddies while playing, everyone was great.
It could be because of the times I played though, most young Americans (sadly most of the time they are the ones to blame

) are usually asleep or not playing yet when I'm playing, due to time differences.
Sovereign is right, guild wars focusses on team play. You can go solo, but it is hard to do and usually requires you to hire a merchant to be able to somewhat survive, so your still not completely alone. However if you like teamplay then this is awesome, especially if you have played in a good team where everyone is cooperating. it's great!
As of now I really I will be buying this game once it comes out. I havent tried WoW yet, other than that hacked one (just walking around was pretty funny

), maybe that could change my mind about stuff, we will see.