A: Well, this is a complicated answer that should be dealt with in three parts:
1) Society. Society has a stigmata against this kind of behavior, except in some social groups. These small social groups don't always have things in common but what they do have in common is the common disdain for the more common society.
2) Personal Life. While condoned in public, it is practiced quite a bit in private. Polls and research has shown that this is true, people mostly enjoy this type of behavior in their homes but not in public.
3) Public Life. While encouraged in private life, it is rarely accepted in public life. Most people enjoy doing/seeing this in there own private homes but don't enjoy doing/seeing it in public. But as always there is an exception, there are some small social groups that do enjoy this in public and are constantly recruiting new members through public demonstrations and interviews.