Physical switches since they are moving parts, have a high failure rate. Apollo 11 they broke an important switch donning their spacesuits. In Apollo 14 the Landers abort switch was falsely triggering so they had to hack the computer to ignore it.

Most of the cars I’ve owned have been recalled/needed to have some switch replaced in the first year or two of ownership. Jury is still out on touchscreen, but they seem to have lower mortality (it could be a simple numbers game, several dozen switches vs 1 touchscreen).