Well, we don't yet know if Dean will tell Cass or not. Hopefully he will, since there's no reason not to. And there's no reason that Dean can't set him up in a nice hotel or something so he doesn't have to be walking the streets. Although I did like mortal Cass learning the ropes of being Human. I hope they are evolving the character to be a little less dopey. Cass's naivete is endearing, but after being around five or more years, it starts to look like he's developmentally disabled-- especially since no other Angel has ever exhibited that level of naivete.