Ten minutes a day beats an occasional range trip for most defensive handgun skills. How to dry practice safely, what to work on, and the one thing dry practice cannot give you.
Under adrenaline, fine motor control degrades before anything else — which is exactly what reloads and malfunction clearances depend on. What the dump does to your hands, and how to train around it.
Every negligent discharge was committed by someone who knew the rules. The problem is not knowledge — it is the difference between a rule you can recite and one your hands actually run.