Ride across the USA

[Inhouse Bob]

If you enjoy the camping experience, go for it. It will just take a bit more planning.
You shouldn't plan on just setting up on the side of the road or in any old field, as property owners often don't allow it and you could find yourself in trouble with the law. That said, I have friends who have stopped each night in a town and asked for permission to camp in a field or yard. and they were seldom turned away. You just have to have an outgoing, friendly personality. And a dog helps, too.
State and National Park campgrounds are a good way to go and not expensive. You just have to plan ahead and possibly get reservations. Different ones have different amenities. Many have bathhouses and restrooms and such. Some do not. You can Google, for example, "state park camping, Utah" or "camping in National Parks, Utah" and get started there. The internet makes everything easier :-)
That said, I'll bet you can travel a good way on your trip while being hosted by folks right here on the forum. It's an upright community and I wouldn't hesitate to reach out. If I ever get up the gumption to ride across this country, that's what I'm going to do
And you won't need a rifle
Good luck with the planning!!
Bob