I don't believe 孝顺父母 is men's holy duty.

I don't believe 孝顺父母 is men's holy duty. It is between men or women and their elders. You do what you can do, or want to do.

What if a Child left his/her parent to die alone and miserably. Too bad, why not do a better parenting job when you still can.

Sorry, just my thoughts.