I don't think one exercising one's choice is selfish. My year at school and a couple of years below me had a few children disabled by Thalidomide. I bet their mothers had wished they had exercised their choice. Life always has been about the survival of the fittest and choices people make affect that survival rate. I have not been very well lately and probably was lucky to survive COVID. I will probably one of the first affected if one can get it twice, but I think that it is selfish for me to expect the younger generation to take a risk, however small, on my behalf. In fact, I think that it would be selfish of me to expect the youngsters of today to mortgage their futures paying for lockdowns to protect the likes of me.
Had I drank less, eaten less, smoked less, played less rugby, taken less drugs perhaps I would have less/no: diabetes, gout, blood disorders, obesity, arthritis and COVID would not have affected me so much. Why should the kids have to give up their futures to look after me, because when I had the opportunity I didn't bother to look after myself?