If I was full-timing, I'd be carrying my hunting gear. When I hunt, I transport firearms. In my resident State, MN, there are lots of laws about transporting firearms and carrying a loaded weapon with/without the proper permit. I haven't hunted out of State but I'm sure most States are similar.
I dunno', RVing and packing a handgun just don't seem to mix, IMO. It's not like I'd be worried about a home invasion or some such. FWIW, I lived in TX for a few years and I didn't understand the need there, either, but it seemed like even the elderly women were carrying a handgun.
I did have to tell an adjacent camper to pack up his chrome plated 45 revolver and not bring it out again while I was there. This was in Yosemite Park and it was a safety issue. The camper with the gun had it trained on a threesome of brown bears. It might have been real ugly for everyone had he pulled the trigger.