Why are attorney and doctor fees so high in USA if anybody can open a law or medical college?

I disagree with Mr Wang . The question itself contains assumptions which are not accurate. Each state set it own rules for  who may become licensed as an attorney. As a matter of ensuring that the education meets certain standards, most states follow the ABA certification process. However some places, notably California allow unaccredited law schools to operate. The sate sets a different level of examinations for student of unaccredited schools. General press reports say that 90% of the people who attend unaccredited law schools in California fail to pass the state  examination. The ABA does not act as a gatekeeper. It is not a licensing board. In medical school, government regulation limits the number of students to ensure the quality of the clinical teaching experience. There is a vast difference between learning Medici in a 600 person lecture hall and working with cadavers or live patients. Opening a medical school is not something anybody with a lab table and a Bunsen burner can do. There are individual state certifications of the schools and there are state administered examinations and licensing. I am less familiar with eh role the AMA plays but I can tell you with absolute certainty that a person cannot practice medicine in any state in the US without a state license. It is not mandatory for a professional to belong to either society. .A number of doctors dropped their membership from the AMA for political reasons surrounding the abortion question.