Random thought about Early Toxicity

I have been seeing a lot of talk on the boards about how toxic the new player environment is, about how it introduces players to a lot of early toxicity. I was just wondering, could in game chat be disable for early levels and get unlocked at level 15 (or higher)? I know good intention people wouldn't be able to give advice during a game but they could after. This way, after the players get a feel for if they like LOL, or not, they can have chat unlocked to start asking more specific questions in game.