What is wrong with him?

Kale was exposed to H1N1 as his sitters son has the hog fever. So he got to spend the week at home as his mama attempted to work. We had a nice time and lots of interesting conversations. Here is just a sample:

K: When I grow up I'm going to be a doctor.
M: Really, what kind?
K: A white one.
M: That's not what I meant...fill in lots of doctor options...
K: A doctor that helps babies get out.

What is with him and color? Earlier I thought he was trying to diversify the family...now I'm not sure.