The best thing about our house is the big, fence enclosed back yard. We can toss the kids out there and they are good for the morning. Sure we check in on a regular basis. If they go in the kiddie pool one of us will sit on the deck (with a drink and a book) or watch from the kitchen while making lunch.
When they fight, we just yell down at them to cut it out or they’re getting the whining medicine.
Ah, there’s nothing like summers in a back yard cage.