Wow, imagine living in a submarine that can’t go up to the surface. Diving suits required to exit into oblivion in order to board the little transit sub, then a long slow return ending with a hot, bumpy fall. Any point of which is very likely to kill you should even the slightest thing go wrong, of which the chances are pretty high to begin with.
Astronauts are mad, but living in a cave on the moon is next level crazy.