We had a cozy, welcoming local coffee shop in the little college town we lived in when the kids started arriving. It was a large two story affair with an outdoor patio. All sorts of different mugs decorated the walls. You’d pick out a mug, tell the kid tending the counter what you wanted, and they’d make it in your chosen vessel. This adorable little hangout is one of the first places the gang learned how to head out on their own to work on things they wanted. When 8 y.o. No. One was almost three, she, her little brother—still in the wrap, snuggled into my chest—and I would go there. The place had a water dispenser, one of those ceramic arrangements with a plastic jug sticking inverted out the top of it. It had a spicket on the bottom with a lever that you pushed down for water. A stack of paper cups sat next to it so you could have a drink of water along with your coffee. The kid was fascinated with the thing. She could reach the cup...