Before I lost my hearing completely, I had 60/40 (left and right)...and it was declining rapidly....I wore no hearing aids at all!...So, actually, I was lip-reading well before I became totally deaf.....
There is no way possible to read lips and understand 100%...and deafies should not be asked or even required to do so in the first place!
Becoming a very fluent lip-reader wasn't easy. I suffered headaches and eye strain from all the concentration I endured. It was a daily battle to keep up...I wish it on no child/student!
I would tell all those stupid hearing teachers to wear ear plugs...and whenever anyone "talked" to them, do it "voice off", just move their lips....Let them go around all day long trying to understand what is being said!......grrrrr...this makes me so angry!
Bunch of dumb asses I've got to say!