The problem with a purely collective system is not only that it requires economic growth, and the right sort of demographic trends, but that it prevents people thinking about their futures in a responsible way.
Employers have gone away from the idea that an employee is a long-term asset to the company, someone to be nurtured and developed, to a new notion that they are disposable.
Repeating a grade needs to be the last resort, not an automatic response to a child who is struggling to learn.

