There are a lot of folks who "learned to shoot from their dad 20 years ago" who learned a bunch of really unsafe habits.
My youngest son took his NRA Hunter Safety course 2 years ago at age 12. The NRA instructor had firearms on the table at the front of the class. ALL the rifles were laying on the table pointed at the class. My 12yo son objected and called him on it. He was told it's OK they weren't loaded. If I would have only been there at that time, that guy would still be walking funny today.