If we're going in that direction, might as well get rid of those useless bio legs and replace them with robot legs
I'd assume some people aren't fond of surgery.
I think a bigger problem is that there isn't really a good safe way to directly interface a human limb to a mechanical one. Conventional prostheses distribute weight over tissues that didn't evolve to carry those loads and are therefore much less comfortable than a natural leg.
Mmm yeah, I suppose you'd have to figure out a way to connect up to bones for structural support and to connect actuators to. But hey as long as we're dreaming big, why not?
I'm not dreaming big.
I just asked if we could strap people to these things to let them climb stairs, lol
Sure, but I think if you can't use your legs, some robot skills are required by your exoskeleton to not sway around or fall down a stair.