Why don’t they take credit cards?
I’m not 100% sure but think it’s because banks (or CC companies) are federally regulated and pot is not legal at the federal level. But obviously the banks and the feds are looking the other way as these massive cash deposits are made every day from 1000’s of pot shops. Plus of course, the states and cities are raking in cash on the taxes. If the feds stuck their noses in the states would cry. But the banks so far don’t want to stick their necks out I guess.