I hate to break it to you, but ingraining anything is called training.
informing you of the law is training.
Forcing you to qualify with your own gun is training, if not de jure, de facto.
It is ridiculous to claim no training is needed. Your examples of LEOS being crappy shots is a straw man argument, AND begging the question. Not only are we NOT discussing police training, all you have proven is how training is imperative and even police need more of it.
If you cant hit the bad guy without killing me, don't shoot. Forcing you to listen to that message is called...training. That training forces you to face the fact that you may not be the lone ranger. It makes you aware that you can miss and hit other people. And that is called training.