Daphne, I definitely believe your outlined (and other accommodations) are needed to better serve adult learners, particularly in adult literacy programs. It has been my experience that these services are not part of adult literacy (routine) offerings. Depending on the location of the classroom site, some kinds of physical accommodations may be offered. 

I believe this lack of support and resources are the result of an overall devaluing of adult literacy programs and the population they serve (from funders, policymakers and other leading stakeholders who have the power to make the difference). 

Angela