From Kirby R. Cundiff at mises.org:
When an investor buys an annuity or another retirement product from an insurance or mutual fund company, the contract is constant and enforceable through the United States court system. When a United States taxpayer is forced to pay for a government backed retirement system such as the Old-Age, Survivors, and Disability Insurance program (OASDI) — also known as Social Security — the “contract” can be, and is, changed on a regular basis by the United States government, and those changes are generally not to the benefit of the taxpayer.
Participation in the Social Security system became compulsory in 1935 and the first monthly retirement checks were issued in 1940. The first monthly check was issued to Ida May Fuller of Ludlow, Vermont. She had paid approximately $25 into the Social Security system and received over $22,000 in benefits from the system due to living to 100 years of age. The other early retirees of the Social Security system on average also did very well. Retirees in 1977 are estimated to have received seven times what they paid into the Social Security system. Retirees entering the program as recipients today will probably receive a negative return on their “investment.”
To continue reading: Social Security: The Long Slow Default