I always felt like I was taking crazy pills when I would leave my conservative elder parents who hated the idea of universal healthcare, and go to my younger liberal friends who were all for it. It was such a clear case of peoples ideology running directly against their self-interest. Young people being against paying for old peoples healthcare (while the elderly control a much larger share of the wealth) made sense to me, old people wanting more reassurance that they would always have healthcare made sense, but the two groups essentially wanting to self-sabotage was always confusing.