Mars is like 7-9 months away on the best pork chop plot. And even if you have something like an Aldrin cycler that may be able to cut that down at certain point to a few months, theres still a lot that can go wrong in that time. The average time to communicate to mars is something like 15 minutes as well. Its a totally different ballgame of "they are on their own". Even if you compare that to say....Christopher Columbus or others (that did similar for the time, but also knew there was a good chance they had the resources needed to survive)
Mars has some water and basic elements (O2, N2, H2O) but not much else otherwise. ANy food, probably drinks, shielding, and technology to make long term viability possible will have to be towed along.
Mars does seem like an option for expansion at some point. I am just not sure it will be in any of our lifetimes though.
Did what? We put a few people on the Moon during the Cold War, then we ignored it for 50 years.
Now there's another war with Russia, and we're talking about putting people on the Moon again. It's all about nationalistic nonsense.
Not to mention that the Moon is a heck of a lot closer to the Earth than Mars.
To me this whole "let's rush to Mars" without even having a moon base is just insane.
It is closer to earth though.
We could potentially build this sort of earth-moon infrastructure out over the next few decades.
Your 100% right that living on Mars right now is going to suck. A lot. As the "man boy" said before, there is a good chance that the first people on Mars will just die.
If they don't die they will have a very hard life. If they manage to survive and get back they will probably have lasting health effects.
And the next several expeditions to Mars will likely be the same.
The _hope_ is that after X number of expeditions we will start to build something that resembles hospitability. Eventually that might even lead to growth.
Will we success? Who knows. But if we take your "man boy" approach then we'll for sure be stuck here forever until we get hit by an asteroid or something else.