It isn’t doable to alter your age on TikTok. After you have entered your age when creating your account, it can’t be modified. It is because TikTok makes use of your age to find out what content material is suitable so that you can view. For instance, if you’re below 13, you will be unable to view content material that’s rated for mature audiences.
In case you have entered the mistaken age when creating your account, you may delete your account and create a brand new one with the proper age. Nonetheless, you’ll lose your whole followers and movies should you do that.