How to ensure roblox kids safety while they play online?

Oh goodness, Roblox! My child just started mentioning it, and I’m already a nervous wreck. What if they stumble upon something… inappropriate? I’ve heard stories! And the chat features, what if some stranger tries to talk to them? My biggest fear is them getting exposed to things they shouldn’t see or understanding things beyond their age. Are there really settings that can truly protect them? What if those settings aren’t enough? I just want to wrap them in a bubble sometimes!