Some face no problems at all. If there is good quality physical access they can move about freely. If there is a policy of no tolerance for bullying and always respecting students - there is a good social atmosphere. Students who start school from the beginning, with other students who have always been in inclusive school environments do the best. Than disability is just a natural part of the environment. When you wait until later in a student's career they are less likely to be accepted as they have learned the ways of the segregated classroom and don't fit in as well and are less likely to be accepted as an equal peer.