First of all, Tik Tok:
First, open Tik Tok and log in to an account.
Enter the main interface of Tik Tok and click "I" on the lower right.
On the home page, select Edit Profile.
Find the "Birthday" option and click Enter.
The date of birth will be displayed. Click Don't Show on the left.
If it is not displayed, the buttons behind it will be displayed in green. Click OK on the right.
After the setting is completed, the personal age will no longer be displayed.
Second, Aauto is faster:
After opening the software, click the three horizontal icons in the upper left corner. As shown in the figure
After opening the left side, click on the account nickname above. As shown in the figure
After entering the personal homepage, click the Edit Data option. As shown in the figure
On the page of editing data that opens, click the birthday constellation. As shown in the figure
On the page that pops up at the bottom, click Set to be visible only to yourself. As shown in the figure
After choosing to be visible only to yourself, click Finish Hide Age in the upper right corner. As shown in the figure