Why does F*c*book require real names?

[lololulu19]

AOL mail, Gmail, Yahoo mail.... no email account requires real names.
Tiktok, Twitter/X, not even INSTAGRAM (owned by Fcbook) require real names.

So... WHY does F_c_book require real names?

I cannot think of any internet entity that requires real names to be divulged pubicly... other than F_c_book