I know it's such a widely used phrase (and its intention is positive) but it really gets my back up as when I hear people say it, especially my family members saying it to DS. It just reminds me of how you talk to a dog, not a child!
It might be specifically obvious to me personally because DS is bilingual and in my language (not English) the phrase doesn't really exist except for the type of thing you'd say to a dog/pet.
I'm sure this is totally subjective and maybe I'm being over sensitive, but what are your thoughts on this?