The singer posted photos of her four youngest kids — David Banda, 17, Mercy James, 16, and 11-year-old twins Stella and Estere — having a blast at a pool party on her Instagram Story Tuesday.

I hate to be a summer scrooge, but it’s time to declare that pool parties with lots of kids are typically just not safe. Parents can get distracted (it’s a party, after all) or misjudge their ...