Whether you're pushing your college-bound kid reluctantly out of the nest or doing so with gusto, you'll both feel much better about the transition if you've prepped them to handle small yet significant parts of the real world. There are so many things every grown-up child must eventually learn how to do — like cooking a decent meal, for starters. Sure, you can try to walk them through it on the phone once they're out of the house, but why not get the ball rolling now? That way you can spend…