For ROBLOX to become a multi-lingual community, game developers would first have to make their own games multi-lingual which I don't see happening anytime soon.
I appreciate you posting this, you gave me the idea of making it easy for developers to make their games multi-lingual and I've succeeded. Take a look here if you would like to make your games multi-lingual: https://forum.roblox.com/Forum/ShowPost.aspx?PostID=214004051
I also appreciate you for suggesting for idea, and roblox is already working to be a multi-language game. So, if you are going to look at this thread below, it will list all the information, problems and how to fix, and conclusion for that.
Here is the link: https://forum.roblox.com/Forum/ShowPost.aspx?PostID=211281621
I support.
sincerely, roblox soldier (RAP: 7)