I'll conclude with this. One tries to imagine the life of a vision-impaired or blind person. Those for whom it was an early-life experience, either at birth or in early childhood, would have had a period of youth through which they could adapt to the impairment or vision loss. If it happens later in life, either as you get very old or as a result of an injury at work or in the service, and you're adapting as an adult.... Are the needs in the final years different for those who have become blind later in life versus those who have been blind since their earliest years?
I know with language, if you learn a language early, you learn it, but if you try to learn it late.... We all know how difficult that is.
If my premise is true, does it mean that we have to respond with programs a little differently?