Around that time it was also revealed that 23% of students who start university courses drop out. This came as no surprise to me - as long as three years ago one of my sons used to tell stories of his fellow students dropping out of courses. These were often straight A students who had simply found themselevs on courses that did not turn out to be what they expected. Something that effective career guidance might have prevented. This is shocking when you think of how much a year at university costs these days, particularly if a student lives away from home. Probably approximately £10,000 (fees - £3500, accomodation - £3000, maintenance - £3000).
Neuroscience tells us that on average the human brain is usually fully developed by age 23, with cognitive skills of self evaluation being amongst the latest to develop. So ... if no-one went to university until they were 23, drop out rates could fall. Like that's going to work!