I do get sick of this notion that where somebody went to school or university is proof of intelligence. It is - apart from anything else - fantastically reductive.
The other day I was thinking about it and realised that many of the people whose intelligence I most respect have never been near a university. Equally, I know a number of people with PhDs I wouldn't leave alone with a box of matches.
Much of what we laughingly call education consists of box-ticking exercises and is in and of itself no proof of intelligence whatsoever.