These two observations can be synthesised into recognising that most people are poor at empathy and haven't seriously thought through the question of why other people do what they do (fun fact, a skill that can actually be practised by arguing about politics).

Most parents are probably bad at parenting, based on the observation that most people are bad at most things and there isn't much in the way of training available compared to the size of the task. But most youths are even worse parents and have wildly misunderstood the constraints, goals and threats involved.