That illustrates my primary objection to Constitutional carry laws.
Yes, we have a right under the second amendment to be armed and yes that should and does extend to concealed carry. But we also have a responsibility to exercise that right in a manner that does not infringe or violate someone else's rights.
The problem is that way too many people want to have the right, but either don't want or don't comprehend the responsibility that goes with that right.
A day of training split evenly between safe handling of a firearm, and the laws pertaining to the use of deadly force in the particular state, followed by a couple hours spent qualifying with a handgun, where the instructor can verify both safe gun handling and a minimum level of proficiency isn't too much to expect and doesn't infringe on the right to carry.
Excessive permit fees, application processing delays, and excessive costs for the above training can be a barrier, but the training itself is not the problem.