You will never see siblings fighting over who should take care of their aged parents. But as soon as their parents die, they fight each other over inheritance. And that is why people don’t progress in life. Inheritance is finite.
Even if you get it, you will spend it. But a parent’s blessing is infinite. Wherever you go, it will keep following you and progressing you. So, care for your parents because they cared for you. It is better to inherit their blessing than their property.