My smart-alecky response would be, “I don’t know any kids,” and “I never was a kid.” When my own children were small, I made it very clear, when necessary, that I had no kids. Kids are goats. I had children. I felt like they deserved that respect.
Although I have children—two of my own and two stepchildren—all in their forties, I struggle with calling them my “children.” They are responsible adults. with children of their own.
So I never was a kid. When I speak of being a child, I was a child until I was a teen. From being a teen, I became a woman. I’ve never been much of a lady. :D