I too have paid into Social Security since a young age (16 for me). I was forced to retire early at 62 due to back problems. Fortunately, I had a good 401k that I started at age 26 and so am not entirely reliant upon Social Security however had I been, it would have been near impossible to live as I have been. Having done extensive research into how to manage that early retirement, considering the reduced SS benefit coupled with the high cost of healthcare until I quality for Medicare, I discovered some interesting information.
First, had the average worker been able to invest the same 12.4% of income that the government takes for SS in an IRA at a modest 8% return, most would easily top the $1 million mark by age 65. Further, rather than be at risk for the fund becoming insolvent, we would not be facing that issue as the markets have consistently posted positive returns for decades. Once you reach retirement age, it should be treated as any private IRA thus allowing you to withdraw funds to meet your financial needs and desires, rather than be pigeonholed into what they determine you may have. Plus, it's all yours or your heirs, not the governments. Finally, as it stands, once you pass away, whatever money is left is kept by the government, except in the case of survivor benefits which are often not at the full rate being paid to the original SS recipient. How many people die young and never collect benefits? If they had an IRA, it would at least go to their family or chosen heirs.
Though I agree that many people wouldn't have done this on their own, if we were required to have that same 12.4% withdrawn from our paychecks but deposited in an approved IRA that we could manage how we invest (aggressive or conservative) we would be far better off. I am NOT at all for the government managing this or many other areas of our lives as they have proven to be remiss in much of their fiduciary duties.