We traveled FT for 7 yrs.
Carried a 'coach gun' (side by side 12 gs) and various pistols & some rifles from one end to other end of US.
Why? Cause I grew up with weapons, have used weapons, been around weapons etc. my whole life. Weapons were just another tool used on the ranch, hunting, plinking, Cowboy Action Competitions and defense should the need arise. As a legal American Citizen I have that right and I exercise it...frequently.
A shotgun is one of the best (and least restricted weapons) one can carry while traveling.
Your choice may be different and that is alright also. I choose to carry.