I was a teacher and have a M.Ed., so I don't get much flack from my family. I hold the higher ground in any argument they want to make because I can say, "Actually, IN school, they would be x, y, z."
My sister was a teacher and now stays home with her kids. I don't know if she really cares or thinks too deeply about it all. :)
My father-in-law was a high school teacher and my in-laws have been super supportive.
Being a teacher gave me a "free pass" in many regards. I get questioned less.
However, as my girls are getting older, I am starting to get asked when "they are going back." So, we'll see what the next few years bring.
Interestingly enough, my teacher friends have been most supportive of my decision. It's my non-teacher friends that usually have all the socialization questions.