Much can be learned about making manned flights successful by making unmanned flights.
I do not see Mars expeditions of any sort as being a consumer product like Windows.
There was a lot of work done in the field of computers before it was even remotely possible to make a personal computer. The first of these were quite computer unfriendly: paper tape, banks of switches, teensy memories. Tape drives, disk drives and hard drives were all adapted from mainframe computers.
I remember using an Apple 2e at Barry University. It was not user friendly at all. My Commodore 64 and my TI-994A were far easier to use.
But again, I do not see a parallel between PC's and Mars expeditions. I do not see a good reason to accelerate Mars expeditions with manned personnel. We have been to the Moon, and probably we could learn a lot more about the Moon with unmanned expeditions. We are not going to see our astronauts leave NASA for other countries, because other countries (so far only Russia) are not doing anything that we have not already done.