Excuse me, why are healthy people unwilling to contact deaf people? Tell me your opinion.

It may be because communication is troublesome, or you see that these deaf-mute people are different from themselves, have a sense of superiority, are unwilling to contact and communicate, or discriminate, but the situation you mentioned is rare. There is no hostility under normal circumstances, but some curiosity is true. What you said is very rare. After all, not everyone is full of bad water.