Clinical Psychologists go through something similar too. My girlfriend's PhD program is 5 years of classes and training, and giving therapy under supervision in the clinic under the school's umbrella as well as supervised therapy off-site at hospitals, clinics, and other institutions. Then, she must do a 1 year internship somewhere else (very typically requires relocation). After that she has her PhD but then must "post-doc" for a few years somewhere else (again, typically relocating). Only then can she become licensed.