What does is mean if a guy occasionally calls you kid? with example

well there's this guy and I like him, he seems to like me, I've known him for a year but we're just like acquaintances, he's called me kid only like twice but it throws me off, cause we're like talking and a little flirty so just wondering what it means or maybe it means nothing, and well I'm a bit younger, not ridiculously younger just like six years. Example: we talk okay and then "bye see you later" he responded, "yea I have to go to work, I'm late take care kid, see you later" and he like touch my shoulder