If that's the case then what is the point?
If you think robots should do everything then you might as well retire the human race. Why even bother to live. Why explore the stars when you can get a robot to do it for you?
If the goal is "put man on Mars" then that's what you gotta do. It's harder to make the argument that you need to do that in the service of science, or even offworld colonies, given the unsuitability and impracticality of those both.
What plausible path is there to offworld colonies without sending humans?
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