“Minimum mandatory” is doing some distortion here. There are countries where the vacation days can only be reduced with extra payments.
I believe a much larger share of the world will fall into the last category if you focus on “number of vacation a person can expect to have at no cost if they want it”. The 30 days is kinda of a standard.
Will will be crushed way before you can float.
I don’t know if anybody actually knows whether you float or not, but there are heavy elements there, so naively, you should float at some point.