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 all users to change their Roblox account's display name in the account settings without spending a dime. Here's how to do it.

The process for changing your display name on Roblox is fairly simple. Here's a full breakdown of how you can change your display name in Roblox.