What are the cultural and social norms in Deaf culture?

Social and Behavioral Norms: What old examples are there of taboo things becoming a normal part of culture?

• I've been told that opera was thought of as massively destructive of 'culture' but grew into being totally accepted and is now high society. Thinking about this a lot after seeing all the squabbling over violent video games and remembering the freakouts people had in the 90's over explicit music...

• Answer:

  Ear piercing was taboo and unacceptable in my grandparent's generation, they were horrified that their granddaughters (me and my sister) wanted their ear lobes pierced some 25 years back.  I just took my child to have three holes done in the shell of her ear cartilage and really all I asked her was where she found the idea... completely acceptable now (her father said he'd pay for a nose or eyebrow piercing too! Of course I accused him of hoping to give his father a heart-attack!)