Remember when you were young and played “store” or “restaurant” at home? The excitement of coming up with a name for your budding business, setting prices, choosing products or menu items, and finding customers (that is, family members and usually a couple of stuffed animals). When my son was three years old, he started a store in our house called the “Stuff Store Studio.” He sold his father’s old records and some of his own drawings. Even at his young…