oh man, it'd be so easy for the government to make money off of it it's not funny. even the legalised med use states charge for the priviledge! it'd be very easy to set up an id system for bud buyers so age limits can be controled better and to ensure the feds get their money. many other ways to 'tax' the use too...and y'all just have to figure there will be a 21 and over age limit when they do wake up along with heavier fines and sentences for those who break the regulations.