A reason to go to Mars (lugging ressources)

Joe, to keep my answer short here, for the general audience, I will
concede the concept of G-spin, if you will allow that very few
sailors ply their trade without getting wet. Frequently.

That's the cautionary suggestion that microgravity will affect those
who are surrounded by it.

I did not even mention solar radiation storm flares, another
solvable, but occasional issue in open space.

I did not mean to suggest you couldn't be a parent, but ask any
ground pounder grandma, and you will get a firm NO to pre-teens in
space.

As for microgravity in general, YES there is such thing as toroidal
force, which can simulate gravity forces. It is not the same thing,
and sadly there will be many who cannot tolerate spin for long.

In an unknown percentage of the general population it causes clinical
vertigo (not fear, but actual spin-induced physical nausea), which
cannot be overcome.

By proof, I simply meant that we have not yet erected that Ferris
Wheel in the sky yet. Even a small one, with proof in performance,
and quality assured safety could be enough to sway me on `believing'
it works.

The `Mission to Mars' had a nifty version, and the larger
Jupiter `Discovery One' craft of `2001 a Space Odyssey' exercise
cylinder would each satisfy my inner-Missouri (the Show Me State).

As far as larger populations in space? Maybe, IF they eventually let
us build the O'Neil cities, and interstellar starships. By they, I
mean the mysterious governments or venture capitalists, and the
public in general.

I can ignore Luddites with the best of them, unless they are better
armed than I am