Many students tell me that they play online games at home with Roblox. So, given its popularity, here's an article I found online that may be helpful to parents: Parents Guide to Roblox and how your kids can play it safely (Dec 2019). This article is from the UK, but it contains very helpful information on parental controls.
Here's another article on Roblox from Family Online Safety Institute (FOSI): What Parents Need to Know About Roblox (Dec 2018) FOSI is an international, non-profit organization working to make the internet safer for kids and families. You can learn more about them on their website.