There is a culture has decided that hands must be covered or hidden at all times. Perhaps they see the hands as vulgar or private, in the same way we see sexual organs. In general, they hide them from public view all times, and usually cover them so well that their hand's outlines can not be seen either. There are some extremists that feel that showing the outlines of their fingers a freedom of expression. There are even a few hat would show their hands openly and risk incarceration. Good, moral people wear non-form fitting bags on their hands, which they usually don't remove unless bathing or (in some cases) sleeping.
Obviously, this would prove problematic, because people need to use their hands and fingers for practically everything.
How does this culture progress?
Bonus: What caused this culture to adopt this view?