We often joke that he was left in a basket on his parents stoop because he's nothing like the rest of his family. He started cooking as a hobby a while back and found that he enjoyed it (at least for weekends and holidays). Now that he's retired, he cooks a lot during the week as well (and is better about helping with other house stuff). His parents divorced when he was was young and so maybe it's because he doesn't have an entire childhood of being waited on by his mother but I definitely have been encouraging any moves toward real partnership for a long time.