some bad people will find your adress and visit your family, this is what i believe would happen with bitcoin legal.
I don't think it is so easy for bad people to find you and visit your family just because you use Bitcoin.
If so, everyone who is on the top of BTC rich list now will be in danger.
Yes, if Bitcoin becomes legal, then he will lose anonymity. Many will try to translate it into other assets. And that collapse for Bitcoin