I think that one advantage of sending humans is that we can gather data about how living in space affects human beings. We know what zero-g is like from the IS

I think that one advantage of sending humans is that we can gather data about how living in space affects human beings. We know what zero-g is like from the ISS, but what about the moon with 1/3rd g? Etc How do we deal with the radiation problem? Is there a way to tunnel underneath the surface of the moon? Etc