the problem with actual sex change, which would reassemble the body on a cellular level to produce a completely normal body of an opposite sex, is that it's going to fucking eradicate women from existence. mentally ill porn fetishists are one thing, but given to actually try how it goes as both genders and freely choose which one to stay, it is very unlikely that anyone at all would be a woman, other than few weird sexual deviants, and even them for a short time. however, if such an advanced tech as actual sex change is available, the human reproductive system would be a trivial stuff for this level, so it's not like society's reproductive capacities will suffer.
Russian Federation