It’s even worse when one or both of your parents, as well as yourself, are all undiagnosed ADHDers, and the parents act as though you’re going through a personal failing and need to “get your head in the game” or “just concentrate”, even though in their past they were exactly like you, while they believe they’re completely typical, which also sets an artificially high barrier to actually trying to convince them it’s not simply a lack of willpower.