One major effect of this is that weed stores will be able to use banks and payment processors legally once the regulators catch up.
THEREFORE they will be able to move CASH money out of their stores TO BANKS, resulting in fewer "smash and grab" incidents ... aka, "Hyundai meet storefront of weed shop." Looking forward to this, silly to see so many Kia "boys" being used for gross violence crimes when regulation changes could lessen it. > https://www.king5.com/article/news/crime/seattle-pot-shop-cr... for example
One of the first to open a few years back got hit early and everyone seems to have learned the lesson.