This is mostly common in european countries and in the rich parts of poor countries, since the earning potential of people younger than 30 is usually way below the cost of rent and living, and the awesome, fantastic, brilliant tradition of moving away from your city to go to college, like americans do, is much less present.
This is mostly common in european countries and in the rich parts of poor countries, since the earning potential of people younger than 30 is usually way below the cost of rent and living, and the awesome, fantastic, brilliant tradition of moving away from your city to go to college, like americans do, is much less present.