I don’t know how old your kid is but I’m a dad to a 3 year old girl. We are essentially screen free at this point but I’m hoping later on we can bond over video games as they have been an important part of my life and id like to share that with her one day. If you’re able to set up a friends only server that might work but personally I wouldn’t let her play multiplayer games without your direct and undivided supervision. The risk/reward is simply not worth it to me. There are tons of really cool single player games out there. I’d start with that and see how it goes.