I think to reform this broken SS system, we should mandate that 25% or more of your support come directly from your own children. :p
Already been done - in Science Fiction
http://www.amazon.com/The-Unincorporated-Man-Essential-Books/dp/B0030EG1BA
Each person “Issued” stock at birth
20% held by each parent
5% held by the Government
55% is “Yours”
Income goes to the “Corporation”
Stock can be bought and sold on open market, as made available
Marriage involves exchange of stock