Companies are not charities created to employ people.
So sure if only 1 person is off on leave most likely another person could be hired
But 5 years of protected leave..... What percentage of the work force is going to be out on that? Also since it is very hard to terminate someone in the EU, what happens to the employees that are "filling" the positions of those people out on 5 years of leave? can they be terminate or do you have to keep them employed even after the original employee returns?
If you can be terminated would you take a job knowing the second the parent returns you will be terminated
Parental leave should be measured in weeks, not years. If you want to be a stay at home parent for years, leave the work force and then return...,.