Additionally, in my (relatively) highly educated country (The Netherlands), selection for university starts in primary school, where about 20% is assigned ('giv

Additionally, in my (relatively) highly educated country (The Netherlands), selection for university starts in primary school, where about 20% is assigned ('given the advice of going to') to the type of secundary education that prepares students for university. So I think it's fair to estimate that a university education for 20% of the population is realistic, and I have no reason to believe this would be significantly (10 percent points higher or lower) elsewhere in the Union.