Casinos and "kids"—namely anyone younger than the legal gambling age of twenty-one—have long been at odds in Las Vegas. Even so, some resorts offer large arcades, thrill rides, elaborate swimming pools, and other youth-oriented distractions, hoping to attract parents toting tykes. But, following the more traditional approach, many newer hotel-casinos discourage parents who opt to bring their offspring along for a Las Vegas getaway. "No Strollers Allowed" is a common posting at upscale resorts, and a 10 p.m.