My mother-in-law insists on calling everyone "young lady" - especially if they are 60 and older. My sister-in-law and I have tried to explain to her that it is condescending, but she says that people like it.

Uhmmm, I don't think so - I think it is totally RUDE!

Of course, there are other thiings that she says/does that I find totally rude, but that would take a whole thread of it's own....lol