The problem is English! Most other languages have a plural "you" so people know whether they are being addressed as an individual or as part of a group (even a group of 2). We have come up with all sorts of inelegant ways of solving this, "you guys" being the current one. Never mind what gender the person is, it seems to be unisex now. Personally I prefer Southern US/Texan "y'all" to anything, it makes sense. And I am not from there! The worst has to be "yous/youse" which was spelled "use" in a recent text to me - by a younger person, of course. And while we're on pet hates, I loathe being addressed as "mate" or "pal". Scottish bus drivers do this frequently. Madam - or even "Missus"! - would be better than that. Once I said "I'm not your pal, I could be your granny." Blank look in return. I know they don't mean anything by it and there are certainly worse things one could be called....But I still hate it!