Would this create a more safer community? would this cause people not to resort to crime? substance abuse? etc?
It wouldn't create a safer community like what you think OP. I guess you didn't saw what crimes is already happening while we are using crypto. this things won't end because we can not control what peoples mind, we have our own rules whether we choose bad or not and crypto is not that solution to stop it. crypto is to help us make our transaction more easier, safer environment is not really crypto will intend to do but blockchain will help us to trace all possible crimes that made by other people.
Some people seem to hold the belief that bitcoin is going to be like a magic wand that is going to resolve the problems of the world and we know it is not true, if a new technology could resolve the problems of humanity then our problems should have been resolved long time ago, bitcoin is just a superior form of money in which we do not need to trust a third party, that is it and we should not expect more from it, as long as bitcoin can keep performing that function that is more than enough.