We should not get our adult teeth at 7 then no more ever. We need at least one more set.
I don't think balding is useful, agree that could go.
Fertility should be manageable without using all the devices, hormones, etc. Like it should be a positive choice not a default state we have to harm ourselves to avoid. And I don't think we need menopause either. Just turn on fertility only to get pregnant.
(ETA- I also think sexually transmitted diseases should not exist at all, they seem like religious fundamentalist biological warfare, but not sure what change in a human body could accomplish this and leave the pleasure intact. )