Honestly, getting rid of any chat (voice/text) and DM features would would help. I don’t think kids should completely lose online gaming, just make it almost impossible to communicate with anyone on said game. I played a shit ton of Mario Kart and Splatoon online as a kid, but neither of those games offer personal messages/chat features (unless you set them up via app), so I imagine grooming would be almost impossible.

I don’t want to take Roblox away from kids, as I understand how fun it was growing up, especially if you can’t afford a console/games at home. But chat has to be either heavily moderated, or just entirely removed imo.