the little mom and pop campgrounds aren't very fancy......ever. but they're safe and cheap and you'd have everything you needed in your Rv.........
i've had incidents when i took small chances. i've always had a dog or dogs with me, plus i've been doing this for about 25 years. and i've always had a gun.
an good example would be I-40, according to a Texas State Trooper, it is the major drug conduit of the United States. i traveled on it constantly and had to really adjust to who was out there.
you can have a delightful trip in the RV...go online and find small RV camps nearby. google them.......google state parks. they always have nice facilities and they aren't expensive around here and in the southwest. and up north. you'll have a blast.......but you can't stay just off the highways............

xxoxoxoxo pat