Since it’s never too early to cultivate a taste for expense-account dining or mid-century-modern design, The Four Seasons has declared August 15 Children’s Day, which means tykes and teens from ages 5 through 14 can eat for free at the “Almost Grown Up Luncheon” in the Pool Room or the “Junior Executives Dinner” in the Grill. Two children per adult, and don’t dare ask for a kids’ menu. 99 E. 52nd St., nr. Park Ave.; 212-754-9494.