[RetroTechie]

Given the travel time, any visit to Mars would probably not be short-stay like 1 day. More likely weeks, months or longer.

So you'd have Mars G for time on the surface anyway.

And besides: a few astronauts have already done long duration microgravity, returned to Earth & lived to tell.

[inamberclad]

Sure, but NASA is concerned about an emergency landing scenario on Mars. Astronauts that crash land while physically incapacitated from long duration microgravity will face near certain death.