My wife and I are in our late sixties and travel off and on in a class C motorhome. I have read very little on carrying a weapon while motorhomimg. The questions I have are: Is it legal to carry a shotgun in all states? Will you be allowed in state and federal parks? What type would be the best to carry? Any other questions that would apply? I have never owned a shotgun, but I have several pistols and a 22 rifle. I was in the U.S.M.C. in the sixties and used various weapons then but not much since that time. Any advice on this subject would be appreciated. Thand you.