Respectfully, this is one of the many starry-eyed "we seek to achieve the impossible" posts in these comments that refuses to address the practical realities. You're not going to erase radiation exposure with a motivational speech.
We call moon shots “moon shots” because we landed on the moon and generated incredible generational wealth from the technology in the process.
Had we not, we would call moon shots something else.
Spaceflight oriented radiation shielding will also improve over time.
On Mars, radiation won't be much of a concern at all, since all living quarters will be underground, either under piled regolith, or deeper underground.