There are very good reasons to carry your gun everywhere you can, whenever you can. If you make it a habit, you’ll almost certainly find it easier and more comfortable to bring your gun along, and you’ll be less likely to find yourself without a gun when you really need one.
However, there are also very good reasons why even the most dedicated concealed carrier perhaps shouldn’t carry at times. Ultimately, we carry guns to defend our lives, but as Melody Lauer says, “Don’t