If we colonize Mars by 2050 like Mr. Musk hopes to do, who is going to volunteer.....you will never come back to Earth.
And what are they going to eat after they get there ?
Nope not me. When that occurs the male to female ratio will be so out of balance on mars. There will be more female here and all you adventurous men can go and I will have fun your your ladies here.
No women is going to leave her friends network and never come back to sip cocktails with them again.