This could be combined with the concept of reducing the 5 days work week to 4. Those that need paternity leave continue with 5 days after the leave until they h

This could be combined with the concept of reducing the 5 days work week to 4. Those that need paternity leave continue with 5 days after the leave until they have worked it off. In the end both would get the same amount of work days, and compared to today it would be the same(or better) as when there are paid paternity leave.