@Jollysammy If you are concerned as to how your son would manage lecture halls at cal poly, you should talk to the Disability Resource Center (main page link - https://drc.calpoly.edu/content/how-request-drc-services ), link to page with possible accommodations available https://drc.calpoly.edu/content/apply/possible_accomodations
There staff are extremely helpful (and nice) and should be able to provide information on resources available to your son.
My (latino/Hispanic) son was also accepted at Whitman (swim team athlete) with a generous scholarship. It is an excellent college, however, Cal Poly was always his #1 choice, and that’s where he went (and graduated in June ’17). Your son has excellent colleges to chose from.