You dont need to take the whole year.
Because your dream life is not everyone else's dream life. There are a lot of good reasons people want to work. Many people actually enjoy practicing their skill, and want to get back to it when they can.
Any such policy would need to have measures to ensure that it is not used to an extent that it is not intended for, including using it for more than N years in a row, or for more than M children.
Certainly, but the number of times the leave is taken was not the issue at hand. The commenter said you don't have to take the full leave. However, empirical data in countries and societies that do have long parental leaves show that most people take the full leave. So while not everyone's dream life involves taking out the full term of parental leave, it is most people's.
This statement "it is most people's [dream]", not being manifestly obvious, requires a citation to a statistically significant survey of people asked if they would take a full year of paid leave from their jobs, regardless of the tradeoffs (there are always some tradeoffs). Either that or it requires a qualification like "in my opinion".
And that opinion can't be used as a general argument against the benefit of paid parental leave. Just as the existence of people who want to take less than the maximum leave can't be used to argue against the benefit for people who want to take the full amount.
This sort of benefit isn't a "natural" right based on people's individual desires and dreams. It's a practical policy implemented via institutions to deal with the modern reality that often both parents are required to work to maintain a middle-class standard of living.
I made no claim as to the 'naturalness' of this right. I honestly don't really care, because that is completely non-germaine to my argument, which is that a year long leave leaves many companies vulnerable to the possibility of leachers like myself, and many others, for whom it's very straightforward to have a child every year or so. This is not a problem with shorter leaves. Most people cannot have two children in two months.