If the choice were between having all chat on, and uninstalling League, I would uninstall League in a heartbeat. Why would you invite even more 12 year olds to speak? I'm already having to babysit my team mates and teach them basic tenets of civilization in half of all the games I play, I certainly do not want the other five parent-less little animals babbling at me while I try to enjoy a game. There are so many LoL players' parents who owe me money for unpaid daycare that it's not even funny, and I've barely started playing this game.