Some of the best pools have a lot of children there, including Mandalay Bay. Without getting into the debate of bringing children to Vegas, list some of the pools that you have seen with less children or that is strictly for adults. I know Caesars Palace pools are strictly for adults. And I think Flamingo might have an adult pool as well? Palms pool is also restricted to adults. My favorite pool is at Rio and there is only less children because there is less people as well (which is why I like it).