QBall QBall:
Not sure how people that frail would survive the G forces blasting off into space. Most seniors can't stand a minor change in their routine. I can't imagine how they could cope with the thought of never coming back to Earth. Plus I'm not sure how many seniors can afford the $25,000,000 plane ticket!
The 1% crowd would be the obvious pioneers as they could afford it. Then, as the infrastructure is put in place for routine trips the price will drop to become more affordable for others.
As to the g-forces, if there's money in it then someone will find a way around that problem.