Taking 1 year of life from person a and moving it to person b is fairly neutral, yes. If, without intervention, both of them were likely to live to 80, now one

Taking 1 year of life from person a and moving it to person b is fairly neutral, yes. If, without intervention, both of them were likely to live to 80, now one of them will live to 79 and the other to 81. That probably doesn’t matter much to either a child or a middle aged person, to be honest, since neither of them has much idea of exactly how many years they have left. It probably matters quite a lot more to a 78 year old, though.