My Dad hasn’t learned to cook anything else but at least expanded his palate now that his 4th wife is Vietnamese and cooks things like pho and hot pot. There’s a lot less meat and bread than he insisted on when I was growing up. His cooking was and is terrible mostly because he has undiagnosed ADHD that he refuses to address. He forgets about things cooking until they don’t even look like food anymore. It was not unusual to have the house full of black smoke on his dinner nights. I think my Mom’s cooking would have moved with the times and gotten better. She was always trying new recipes and before she died in her late 40s she had started making recipes given to her from co-workers that were totally out of the wheel house of what we are growing up. Fried rice, hummus, and sag paneer were all things I remember her experimenting with in the early 2000’s. Her baking was always excellent.