I met one deafblind man he was in wheelchair (reason I don't remember I was 7, maybe he's afraid to walk with cane or guide dog or doesn't have the skills or maybe other disability like CP?) and my school teacher showed me how to communicate with him and I was shy so I wasn't sure what to say but the guy was very nice and talked to me and his aide.
He won't be in a wheelchair because of deafblindness. Sometimes Deafblindness comes as a package deal. I mean the deafblind people have other things wrong with them besides their deafness and blindness. In fact this is very common.