My 12yo son plays "Rocket League" on Steam, however he has started chatting in game to some people who have terrible language that I'd prefer my son doesn't pick up (at least not this young!), and so in an effort to keep him safer I'd like to block the chat (text chat) in Rocket League and possibly in Steam client as well (I think they are linked).
Is it possible to completely block the chat? I am aware it can be done in-game, but of course this can be fairly easily un-done again too. I'm wondering whether there is a config file I could edit to turn it off or block it somehow?