Mars ain’the kind of place to raise your kids. In fact, it’s cold as hell.
And there’s no one to raise them if you did.
Mars will kill people. It is not only horribly cold, it has much weaker gravity and is bombarded by radiation. Humans cannot survive on Mars, even if you solve the cold problems and radiation problems, because the Human body is not capable of surviving under sustained lack of gravity.
It took years of research in space to arrive at this conclusion, but I think it is now pretty much a consensus that gravity is necessary for human health.
A tourist destination for short stays, perhaps, but that's about it until Mars gets more mass.
Yes, Mars is 999 times more like the moon than it is like earth. The desolation is immeasurably less magnificent while the distance is significantly more magnificent.