my only concern with "mandatory" safety training is it can quickly become an end run around the Constitution as a form of back door gun control.
If said training is something along the lines of a certificate that you must obtain in order to be eligible to buy/own a gun, then I share your concern. If, however, a safety course is given to all high school students as part of their education, then I think using it as back door gun control would be much more difficult.
Smith, and Wesson, and Me. -H. Callahan
Well waddaya know, one buwwet weft! -E. Fudd
All bad precedents begin as justifiable measures. -J. Caesar