Make sure that you always change your birthday, even if it’s a wrong one, to 13 years of age or older to be able to change it at a later date. How to change your age on Roblox account (PC desktop)?

ROBLOX allows you to change this username, as well as your Display Name. It’s important to note that there are different rules and applications of both Usernames and Display Names.

How to change your Roblox display name If you're tired of your current display name and need to change it, here's the fastest way to get it done. Step 1: Log in to your account.