People do not understand how acoustics affect a hearing aid wearer. Often the classroom was very noisy. It is important for schools to install curtains and carpets to help reduce background noise. People think one method of teaching will suit all deaf children. We have to consider the child and suit the method to them not the other way round.
People blame every problem on the deafness.
A profoundly deaf friend told me about the problems she was having with her hearing daughter. She thought the problems were caused by her own deafness. I was having the same problems with my own daughter who had normal hearing. We all have troubles with teenagers and deaf ones are no exception. People often think the deaf understand more than they do.