I am the youngest and still took care of the family finances, paid for older sisters and even brothers in the end when I wanted some time to live my life they turned on me. Expecting reciprocation leads to resentment so I self talk that I give because giving makes me happy and that is my identity. My wifes sister did her very best trying to destroy us and we still cook and provide for her.
My kids are my reason for living and gives me a chance to bond with them. No one dies of hardwork.