Education is free.
Children in developed countries in Europe are free to study, and the government also subsidizes them. So everyone is educated and there is no illiteracy.
Vocational school major
When they reach a certain level (roughly equivalent to graduating from junior high school), they will choose to continue to go to college or attend vocational schools. A large number of people will choose vocational schools, so there are not many universities. But their vocational school is very professional, where they can learn a lot of skills, so they can adapt to work quickly after graduation.
The wages of workers are not low.
The wages of ordinary workers in developed countries in Europe are not low, including the income of porters or electricians, which is not less than that of white-collar workers after tax is removed. But there is no manufacturing industry there, so there are few factory workers, because the labor force is too high, which is also the reason why China has more manufacturing industries than Europe.