It’s almost as though the primary way the brains of every warm blooded animal evolved to receive discipline has been eschewed by polite society and problematic consequences ensued?
The only analogue in nature I can think of is violent competition among adult males.
We’ve abandoned something that’s been at the core of nurturing the young for 60,000,000 years. I would assume there’s been a fair amount of natural selection at work in a fundamental aspect of the parent-child relationship. I think choosing not to teach that “when I say stop, stop” without thinking that it will not work out for a meaningful fraction of the population, seems a bit like trying to figure out what the Boeing MCAS engineers were thinking.