Absolutely, but not even Facebook enforced MFA... Though they do offer it. I just can't imagine the absolute nightmare it must be to get Facebook, Google or Microsoft to reset your MFA if you lose it. You might as well create a new account.

We did a MFA reset for a remote coworker a few weeks ago, the about of validation and procedures we had to go through was insane, but also the only way to ensure that this is a correct reset.

MFA is really really important, but there's no good solutions for it yet.