As pretty much everyone else has mentioned, FB is literally banning the vast mayority of people using their real accounts that are over 5 years old that they use every single day on the same real IP.
They seem to be really keen on wanting on lose billions of dollars, the Zuck probably got bored of being rich.
Anyway, nowdays it's not about not getting banned, but getting the account back when this happens, using real aged accounts with real IDs you can get the account back in 1-2 days whenever these bans happen.
I've probably gotten around 100 accounts fixed with IDs at this point and the number will just keep growing as it seems FB isn't getting any better until they most likely go bankrupt.