Finally someone realized that we dont need to go to as far as Mars, if we want to build an extra-terrestrial colony.
I recon the moon's gravity will cause problems if people stay too long. Mars' gravity is more than double compared to the moon so probably better for a long term stay. Also Mars may have more resources like water which could help to create oxygen and/or grow food. Also IMHO Mars is way more interesting to explore than the moon because it may have had life for a period in time. Who knows what is buried under the sand?
I've read a theory, that human body handles low gravity a lot better than no gravity. We already had guys in space for a year (Scott Kelly). The lunar colony could be manned with a rotation of crew, for example a 3 month rotation. The flight is like 3 days to there, so it is almost the same as Australia. Unlike Mars. If anything goes wrong there, it is game over for them. To the moon, we can pretty much just launch a bunch of batteries or MRE or a ride back home.
Unlike Earth and Mars, asteroids dont burn up in the atmosphere of the moon, so we could analize stuff coming from all of space, and everything is just a walking distance from there. There is plenty of stuff to do there. Also, they claim that there is enough hydrogen and oxigen on the moon to mine it. The gateway to Mars may very well be the Moon.
All these nonsense on TV of "people turning crazy" is just for the show. People work on oil drilling platforms and antartica, and they are doing just fine. Just have enough alcohol, and people can handle this.