Presumably if they are licensed to do the job someone else has already done the vetting
That’s true but it’s also true that a candidate may have had previous jobs at a string of reputable companies, and yet that “vetting” is completely ignored and it’s back to square one.
Not to mention that a degree from a reputable university also doesn’t count. Maybe it gets them past the HR screen but no interviewers seem to believe that a degree let’s you skip the whiteboard.