I’ve had a few FB accounts. My current (and all past accounts) have never used my real name, my birthday lists me as 30 years younger and I don’t list anybody as family. I’ll delete my current account one of these days.
How do you avoid being caught? I've heard that they track the IP address to the holder of the account and if the name doesn't match they won't accept the account. I could sign up from the public library, maybe, but they'd delete me IIUC.