I've noticed that and I don't get it. I hate taking selfies, but I have one FB friend (my nephew's SO) who constantly posts enhanced/edited selfies. She's in her early 40s! Once a person reaches a certain age, they don't change that much. I mean, her hair and makeup and everything is pretty much the same in each picture. There's no need to keep posting, basically, the same picture over and over and over.
I guess I'm cranky, too!
Donna