People who think it's a good idea to expose women to severe, and severely premature, osteoporosis and vaginal atrophy? Never, feelings. People who think it's a good idea to damage developing bodies and minds? Because, feelings. People who think it's a good Idea to have themselves emasculated in order to create an artificial cavity that will need daily dilatation, cleaning and luxuriating for life? Because, feelings.
As for transplants only lasting a few years, together Willy all the ongoing dangers of anti-rejection drugs, wherever a utters has been transplanted into a woman for the purpose of her caring a pregnancy, that uterus is then removed after the baby's birth - because all those hazards are not justifiable when they do not prolong life. But, hey, let's not let medical ethics get in the way here.
Not that I'm even convinced that it is ethical to transplant uteruses even between females.