I gave up drinking coffee 20 years ago (gave me headaches).
I genuinely wouldn't know what to do if I were to go into a coffee shop nowadays and want to order a coffee for myself (happy to go in with friends).
Back when I used to order coffee, it was black or white, sugar or not and possibly mug or cup. These days, AFAIC, the menus might as well be in Icelandic.
I also don't 'get' the whole 'barista' thing. Aside from the obvious confusion with 'barrister' that it's inevitably going to cause (unless that's the whole point - "I'm a VERY high-flying barista, you know!"), why is there a specific name for somebody who makes coffee but anybody who prepares tea, hot chocolate, squash etc is just a general cafe/tea-shop assistant?
You wouldn't refer to a clothes shop assistant as such if you wanted help with buying any other kind of garment, but specifically seek out (or be told that you need) a 'trouserista' if you're after some jeans.
Before anybody comes on to 'explain', yes I KNOW that it's an Italian word (albeit one that I believe means bartender, not specifically somebody who only makes coffee), and I'd fully expect people in Italy to use it - but why on earth do we use it in the UK? I wouldn't dream of calling a hospital in Stevenage and asking to speak to the Krankenwagenfahrer.