The moon is closer than Mars. Mars takes longer to get to, would probably cost more to get to, and with how the people are trying to set it up, you would never come back from that planet.

I’d turn that right around and ask are there people that want to start a colony on Mars? Tell all these other-worldly colonist theory people they are all nuts!
Sadly, neither the moon nor Mars are very hospitable environments to even visit, let along colonize. It is not likely to happen on either place. Ever.
We are influenced by Hollywood and science fiction.
I’m here to give you the straight talk. It’s just that: science fiction.
No one is going to colonize anywhere except Earth, and we’d better get our act together here before we kill off people here.