I would imagine the average age is older now than it was 20-30 years ago. The die hard older generations are mostly still trudging on, squinting and nodding at the latest publication from the GB through their clouds of cognitive dissonance until death finally takes them away from it all, while younger generations are more likely to wake up to the lie, having the internet to do private research and learn the truth behind the lie.
As for college graduates, in my experience they are as rare as hens teeth in an organisation that condemns further education, especially for born-ins!