I was raised by a single father, but thanks for derailing the conversation with your assumption that I'm a sexist because I didn't account for the edge case in parenting.
If you think that fathers taking care of their kids is an "edge case in parenting" I don't really have anything to add.
With infant care it's an edge case. Obviously. Everyone knows this.
Being raised by a single dad, I know this more than most. People are always surprised because it's NOVEL.