Or, like, not haze kids in their 20s for residency and make them take hundreds of thousands of dollars in debt. Whereas in Europe and other countries, residents work something like 50 hours per week and graduate with zero debt.

I've watched friends go through it here in the US and I have zero interest in working 24 hour shifts and sleeping in break rooms, working 80+ hour weeks for years. There just is no need other than hazing and keeping artificial scarcity of doctors for inflated wages. There are plenty of brilliant, scientifically minded, hard working people that care about others that probably could be great doctors, but the US training system is just hostile towards most people.