In my opinion Roblox voice chat would be a really dangerous thing to add because there’s a lot of kids on the app and adding voice chat would make it a dangerous place since there could also be pedophiles and predators using voice chat to manipulate children into giving there address or personal info
The only way they could make this work is a text to speech bot that could filter stuff out but since we don’t have much info about how it’ll work I don’t know how “safe” this new thing could be.