The mistake they are making is they assume they can create an isolation "bubble" in which nobody has the virus, so they can act just like they used to. The fallacy is because some large percentage of the population don't take the isolation seriously or even believe the virus exists. That's why so many state's infections are rising exponentially.

If they want to have summer camps, daycare, or open in-person schools they have to follow all the isolation, mask, social distance, hand washing, etc. rules, plus no singing or shouting allowed. In other words, nothing like those spaces used to be. Just the PPE rules plus hand washing may make in-person school impractical. How do they disinfect the bathrooms after every student uses it?