I do wonder how this effects accessibility. What if I don't have a device with me? What if I have a disability that prevents me from using a device? Seems like this might be an ADA compliance liability.
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Many bars (that now call themselves "tap houses") have beer menus that are either only online, or printed in a 20pt font on a 54" LCD TV behind the bar.
It is super annoying to have to get up for each beer because the server doesn't know what #32 out of 70 is let alone which number is a lager, and then not be able to read the menu (because my eyes suck) until I'm leaning over the bar.
Super, super annoying.