The bank accounts thing also makes them bigger targets for theft, because of all the extra cash that stores end up handling when they can't use standard payment methods.
Just anecdotally, to append to this a bit, actually the last time I went on vacation I went to a dispensary, only for the same spot to pop up in the trip's group chat a week or two later because the same spot had gotten hit with an armed robbery. (Or at least attempted? I forget. Anyway...)
