disability is not just physical.
psychological, mental disease are probably a larger component than purely physical conditions
you guys realize it is not a huge population that gets social security disability, right?
"in 2011, 2.4% of nonelderly adults received supplemental security for a disability"
"The disability-prevalence rate, adjusted for age and sex, was 4.5 percent in 2011."
Social Security Disability Insurance and Supplemental Security Income provide critical lifelines for the roughly 12 million people with disabilities in the United States.
www.americanprogress.org
(i must note that this website has a left bias)
and, of note:
"According to a recent analysis by the Organisation for Economic Co-operation and Development, or OECD, the United States has the least generous disability-benefit system of all OECD member countries except Korea."