This is absolutely it!
They can draw parallels to shitty thinking in their own recent family.
My mother flipped her shit and barreled down to my school to “Karen” at the principal when the school sent literature home about the dangers of smoking (70s). It all stemmed from her not wanting to feel shamed about chain-smoking at home (and her office). When her office finally outlawed smoking, she rage-quit her job in protest. She was a treat.