Consider the source: This article on aging with Cerebral Palsy is sponsored by a law firm. Still, raises some concern regarding correlating walking with life expectancy. Wouldn't individuals who ARE ambulatory be more at risk of accidents?
I learned a lifetime ago the professional's prognoses and generalizations frequently do more harm than good. Still, it helps to know some idea of what to expect... then again, do we benefit from knowing what to anticipate?