If a hospital hired a doctor who lacked a medical degree, no matter how competent and how many years he had practiced medicine, every malpractice lawsuit would be a slam dunk.<quoted text>
Not true. Applicants frequently are asked for transcripts no matter how long they have been in the work force. They are also asked for a release of any records the police may have and a drug panel. This is very important for high level professionals and any occupation involving direct reactions with the public such as patient care.
Are you implying that the job of POTUS is at the same level of a as someone who stocks shelfs?
Same for attorneys, accountants, engineers, architects, etc.
Absolute proof is required as a condition of employment.