The view of this question which is taken in America seems to be very strange to me.
Once I heard a young American argue in this way.

He said, gravely and seriously, that as he was brought into this world by his parents without his consent, it was their duty to rear him in a proper way, but that it was no part of his duty to support them.

I was very much astounded at this statement.

In China such a son would be despised, and if he neglected to maintain his parents he would be punished.

I do not believe that the extreme views of this young man are universally accepted in America, but I am inclined to think that the duties of children toward their parents are somewhat ill-defined.