I don't think its a good idea to advertise what way someone could take advantage of you. Most of my time on the seas I'm sneaking around and if I know you're deaf I can skip alot of my steps for boarding and just jump straight on when I know you're looking the other way.
Plus some people might just be more cruel to them but on the flipside maybe some will be nicer. Depends on the person.
Final point, how do we know it would be used honestly? Like whats to stop me from equipping it?
Counter Point, just adding it for awareness could be cool but if we did that we should add a ribbon for the various cancers that are out there and allow people to change to whichever one they want. Idk just food for thought.