I’d rather buy a cocktail from a vending machine than a person tbh. If well programmed it should be able to get proportions perfect, there’s a fighting chance it might know what a right hand cocktail is, and if not it should have an option to let me select components. I don’t need to be an ass about being particular with what brand rums and vermouth I want, I can clearly see what’s available from the selection. It could also let me pick the most popular drink of the night or very quickly give me a mini sampler of a drink if I was feeling curious.