Flag for Soloing

How about having an option SOLO in Options that would make it so when we walk into an aggressive area, the world starts the player in a SOLO game or a game just for the player's party, if the player is in a party.

That way, it's pretty much like everyone is still walking about the world, but now some people can walk alone or just with friends.

The game would always start that player in a new instance or if an instance exists w/ a party member, then with the party member. If there is such a thing as a party leader, then the player would always be solo or join a game with the party leader. Or it might make more sense to always join a party member if the instance exists.