I visited a place called Little Farm at Tilden Nature Reserve, up in the hills of Berkeley, California. It’s a working farm with all kinds of animals—sheep, goats, geese, chickens, rabbits, turkeys, cows, and more. I noticed I was the only adult there who wasn’t attending as a child’s accompaniment. But then I reminded myself I was chaperoning my inner child, and I continued on my merry way to meet the animals. Everywhere I looked, children were stuffing the animals’ faces with litt...