A recent preprint paper examines the minimum number of people required to maintain a feasible settlement on Mars while accounting for psychological and behavioral factors, specifically in emergency situations. This study was conducted by a team of data scientists from George Mason University and holds the potential to help researchers better understand the appropriate conditions …
Well that’s a reason.
At the moment with current technology, colonising other planets in the solar system is unsustainable without a lot of effort from earth so I doubt anything will come out of it in the near term.