I'm a curious person too.
and I do not mind answering questions.I work for a state university and public community college. I would classify most of them as oral, yes. Many have very little to moderate hearing loss, use hearing aids, and speak with very little ''deaf accent." For some the captioning is provided because of large auditorium environments and professors with heavy accents. Universities seem employ a lot of professors that some of the students with even regular range hearing are unable to understand due to accents. I have several students who actually tell me to take a break when they are working in small groups because they have no problem speaking one on one with others.
