Anything to keep me away from coffee and I'd maybe be okay. (Though restaurant work is very challenging for me. I admire anyone who can successfully work at that career.)
I could be a barista, provided that the coffee is of decent quality. I'd become suicidally insane at a Starbucks.
Sommelier is a job I couldn't do. I can't talk like a wine-w*nker, "notes of anise and oak" are only found in the vocabulary of a pompous a$$. I know what I like and what I don't and that's about it. A cabernet sauvignon or a chardonnay, yes. Shiraz you can pour down the sink to clear a blocked drain.