Baking cookies is comforting, and cookies are the sweetest little bit of comfort food. They are very bite-sized and personal.
I don't know what any individual should do about crossing her own borders. I only know that I live a happier, more adventurous life, by crossing borders.
Many rock musicians are excellent cooks, I've found, and those that are prefer to eat their own cooking in the studio. I encourage this behavior as I also enjoy the benefits of fresh food.