>Almost certainly because space exploration is underfunded.
Or because there is currently no benefit in conducting exploration using humans instead of robots.
Or because there is currently no benefit in conducting exploration using humans instead of robots.
I think there is some value in putting humans in space. It certainly seems many scientific discoveries are made by a scientist observing or experiencing something, noticing that it is strange, then investigating. A perfect example of this is the development of microwaves, which came about because an engineer working on radar noticed that a candy bar started to melt when near the radar. Robots are certainly superior by almost every metric once you know what you're looking for, but I wouldn't be so sure that we actually know what we are looking for. Boots on the ground, so to speak, can offer insights that a robot simply cannot.
If the goal is to increase the number of humans in space for the sake of increasing the number of humans in space, one would probably need to do research into a colonial business model sustainable enough to get investors and governments on board.