My opinion !!
Agree .. but until all states have the same qualifying requirements for a CCL it will remain this way ..
Illinois has probably the toughest requirements for a CCL ..You must under go 16 total hours of training that includes firing 30 rounds at a target, 10 rounds each at 5, 7, and 10 yards ..
I think the biggest hindrance in a nation wide CCL is so many states have the legal age for one at 18 years of age .. and there is little or no train in the law or gun safety in other states ..
Until those 2 items are addressed by all states we don't have any hope of a National CCL !!