This really is a huge problem with Facebook groups. I admin a Facebook group and we use the questions to weed out the scammers and fake accounts. I don’t know about charging people money for it. And $2.95 a month seems an excessive amount.
I don’t know many young people who are on Facebook, though. Just a bunch of olds in the group I admin and my kids definitely do not do Facebook. They are on Instagram and sometimes Reddit.