Of course we can tie our shoes in any such way (all resulting in the same):
- using one hand and stump (again) (learn how to do it)
- using a prosthetic hook
- using a prosthetic hand
- even using a ""bionic"" hand
But then, trying these options falls short of really resulting in a good walking experience for some reason.
However with all these great options listed above, you will not go anywhere. To be sky clear about it: you need no ""bionic"" hand (expensive) but you need to know your way around (priceless).