Those explorers always have the luxury of going back to civilisation after relatively short excursions into the unknown.
I doubt many people are willing to live the entirety of their lives in constant danger and constrained resources. And even fewer of those people will have the skills needed to run a complex technological society (and you will need a lot of technology to survive on Mars).
I doubt many people are willing to live the entirety of their lives in constant danger and constrained resources. And even fewer of those people will have the skills needed to run a complex technological society (and you will need a lot of technology to survive on Mars).