We aren't arguing if any of that is a good idea, only if the constitution allows it.
Training costs money. *Mandatory* training can be very expensive and every state is different, but some cost hundreds of dollars. The training requirements are different in each state and no one agrees on how much is enough...there's no evidence that 'mandatory' training prevents anything. Because most people acquire training on their own, in different ways. Of course, everyone agrees that training is a good idea, just not if it must be mandated...there's no evidence supporting it.
Driving is a privilege, gun ownership is a right.
I agree that the SCOTUS does not make laws but is our only means to ensure that the laws made do not violate the constitutional rights and powers defined.
“The reasonable man adapts himself to the world: the unreasonable one persists to adapt the world to himself.
Therefore all progress depends on the unreasonable man.” ― George Bernard Shaw, Man and Superman
Here's the only study that anyone came up with, coicidentally, quite local:
WA state requires no training at all and is a SHall-issue state.
OR requires training and is a May-issue state.
WA has a larger population and a larger urban population. (and a higher number of permits)
OR has a higher number of gun-related accidents and incidents.
This isnt about crime...crime has nothing to do with permits or training.