Cooking is very useful. I think even boys should learn the basics of cooking. I’m not saying that they need to learn how to prepare a three course meal with deserts, but they should be able to spice and throw a chicken in the oven, or scramble some eggs, or prepare a steak. In other words, they should know enough that they won’t be forced to subsist on sandwiches and frozen waffles if they’re home alone for a few days.
The Wolf
(Full Disclosure: I might be a bit biased since I can cook.)