You're never too old to play a game, as long as you enjoy it and have fun. Don't let someone else decide this for you.
it's not about being "too old to play a game," it's about being too old to spend time around kids you don't know on the internet
I'm sure that he, as a parent, can see what the problem is with a 31 year old guy playing a video game with many kids that are twelve and under
idk what kinda servers he's playing on, but if it's any of the popular ones, there's gonna be people in that age group. and it's freaky, even if it's completely innocent