I think lots of shops will keep operating up until someone shows up and checks them. Checking age will keep them from being nailed if someone tries an underage sting, but in the absence of any changes to the regs, eventually they will be forced to stop mixing juice. Hopefully they will use that time to figure out a business model that will allow them to remain profitable without in house mixing. Given the markups on in house juice, I can't see how they'll make the loss up, but lots of uncertainty may still leave other paths available.