I'm stealth at school, a college fwiw. My adviser knows, but she can't tell anyone as that would be a violation of the rules within that school. A few close friends who knew before I began transition know, but I trust them not to tell anyone. Have they told anyone? Idk and no one has said anything, so I consider myself stealth, though I'm in the middle of a scare about that.
I consider myself semi-stealth at work. Do my coworkers know? Yes, I know the ones who were there before I started transition know and I'm sure the ones who have started working there since know (gossip is rampant where I work), but no one says anything about it. Sure some of the people who were there before my transition say something sometimes to me personally, but it's not to others. Do my customers know? Idk and I have no way of knowing but from my experience they all treat me and refer to me as a man so I think I'm good.
And there is no reason not to have any contact with family if you move to a new location. Yeah, I could see if they don't support you or whatever but not all family members are like that. Personally my sister never calls me my birth name except at home because my mother will rain a ->-bleeped-<-storm on anyone who dares not to call me my birth name in her presence. She sometimes slips in public and calls me "she" but that's normal for people to make with everyone, cis, trans whatever and she always corrects herself.