Under Finland's system mother are still given maternal leave, but the fathers now get mandatory leave too. That's how I understood it, no country would forbid the mother maternal leave, except maybe the US.
If would be say the first 6 months the mother takes leave while the next 6 months the father takes leave, for a total of 12 months.
It just means they share the burden and benefits. What exactly is wrong with that?
I cannot say I understand your "entitled" question. Is anyone in principle entitled to anything? Does it matter? Why not simply do what works great? Does doing something need to have any other reason than that it works great and everybody is happy about the result?