But, a percentage that would have bought black market goods may instead go the stereotypical route for underage drinking - getting someone of age to legally buy the product and pass it on.
That still seems preferable to black market goods.
Legal marijuana puts the unscrupulous dealers out of business and allows law enforcement to target them directly.
Possibly. But under-age drinkers don’t regularly source moonshine. If the legal market is there it’s
more likely they’ll find ways to acquire store-bought stuff.