Parenting is not voluntary. Yes, becoming a parent is voluntary, but once you have a child in your home you cannot put being a parent on hold while you focus on other things.
That your parents might get dementia, and you might even have to quit your job to take care of them full time if you don't get sufficient leave, and unlike children, that's not even something that you likely made a plan and budget for in advance, or a lifestyle that you chose willingly despite the stress. It's just one of many possible severely challenging, non-optional commitments that can arise in life.
(This is in the context of supporting making parent leave available for non-parents).
Actually where I work you do not get "parental" leave, you get "family" leave which can also be used to care for aged parents (for a time, just like parental leave, until more permanent arrangements can be made). It is also irrelevant to the article, which is not about normal benefits that parents utilize, but the extraordinary considerations being made right now (and again, where I work, those extraordinary policies can be invoked for taking care of any family member, not just children and not just blood relatives).
Note also that parents did not choose the situation we are currently in. This is not a matter of lifestyle choice. The lifestyle we chose when we decided to have kids included the expectation of childcare during the day and that is what is failing here.
