>How do you justify that especially if one can't contribute much to society anymore and maybe didn't raise kids on your own?

Interesting point. I do think it is kind of insane that like 70% of our government money goes to old people. Investing in the past instead of the future? Meanwhile everything else is getting cut, because SS and medicare are "mandatory" spending. The reality is that these old folks did not pay high enough taxes and save enough money to justify the money going to them now. Younger generations are getting pillaged.