I travel across the country by car a lot. It is a pain (not to mention unsafe) to have to change my route or not carry. I live in a state that is totally as issue (no classes needed)but travel to other states that so far don’t have a problem with me carrying without a class.
It's why National reciprocity is important.
Heck, if I want to travel from my home state of Washington into Oregon to visit friends, I have to unload and store my handgun as Oregon doesn't have reciprocity with adjoining state Washington.
It's insane!