I have very little contact with other people. When I do, it is usually with someone who is fixing the van. I tell them I live and travel in it. (I have a home base so I'm a part-timer...more on that later.) Before long, more people have gathered around to hear what it's like and ask questions. I think the key words are "travel in it". Everybody who lives in or out of a vehicle is a traveler--to work, to the dentist, to the grocery store, to a different place to sleep every night, to the food bank.
Yesterday, I took my bicycle in for repair and change of tires, something I can use offroad. I was explaining to the man what I wanted, that I live and travel in my van to remote areas and how I want to use the bike. He became very animated and told me about a trip he had made one summer in a converted bus, how he hopes to be able to live that way some day. Soon, another guy was standing there, just listening, eyes bright and shining. Same thing happened when I had a battery replaced, when I had some body work done. One guy pulled out his phone and showed me a picture of an RV he was looking to buy. Is everybody planning to do this? The camping areas may be very crowded in a few years. Or there may be many vehicles with people sleeping in them parked outside vacant homes on residential streets!
I am sorry you had to endure the negative judgements of others. It's so hurtful. Bleh on that. Funny, though...the most hurtful negative judgements I have experienced have been from other mobile lifestylers. I had much higher expectations of open mindedness and found that people who live this way are just the same as those in sticks and bricks. Part-timers are "wannabes" and not worth jack squat. That's the first question one is asked, "Do you full time?" and if the answer is no, they slap that scarlet letter on you. Nothing you say after that is of any consequence because you're "just a part-timer". Nevermind that for months at a stretch, I must meet and overcome the same challenges. Actually more because sooner or later, the responsibilities of the home base call me back to do things I'd rather ignore. It's my choice.
Vandwellers are simply a chip off the general population. Good or better, it's just how we are.
Stand up proud and be the best vandweller person you can be! Those who don't get it...well, they just don't get it. Same as Vanners who badmouth those who choose the more "normal" way of living.