If the society in which one lives is backwards to the point of mandating a Facebook account to interact on a basic level... it might be time to turn on, tune in, drop out.
Gualdrapo's post doesn't actually say anything about why he _needs_ to use Facebook. Neighboorhood groups and FB marketplace are not necessary to live. I think we might be conflating needs and wants here.
Being accustomed to doing things in specific ways is not a need.