I can respect resisting pressure to be part of the hearing world, but there are certainly ways in which deafness impacts one's safety and opportunities. Not being able to hear sirens, or oncoming trucks, or cars honking their horns, or cyclists saying "on your left", or fire alarms makes the world less safe for you (and for others who may have the expectation you can hear them)
I'm certainly not saying this to suggest people should be forced to join the world of the hearing if given the option, but I do think doing so would be the responsible option, if it's a readily available one.
Kind of like I don't expect people to learn other languages than their native tongue, even when it's a language spoken by the majority in their place of residence. But if you don't speak the language spoken by the majority, and are presented with the opportunity to instantly learn it (like "I know Kung Fu"-Matrix style), I certainly think it would be more responsible to do so.