We could best demonstrate this in a sort of echo of the earrings arc. What would happen is that Francie would ask if she could pledge allegiance to some sort of harmless trend that Liz saw as wanting to somehow or another grow up too fast and miss out on being a child. What would happen is that Elly would ask Liz "Remember when I turned into the stupidest squawking hen ever and point blank asked you why you were such a bad child, you would rather not be ripped to shreds by mean girls to show your loyalty to me? Remember how fricking dumb and panicky I was? Remember how insulted you felt? Same deal! Let her dye her hair pink, Liz. It doesn't change who she really is."
We would then go on to a sort of go-round in which they all remembered having to conform to silly norms that made parents go bonkers. Elly would have groused about how Marian lost her shit because she didn't want to dress up like a Bulgarian cleaning lady and wear a pixie cut, Liz would have ruefully commented on the power Candace used to have and Anthony would have talked about the time his dad freaked because he was into REM.