We’d spend our time playing spies and hiding in the bushes watching neighbors do whatever, or looking for crawfish in the creek, or just breaking sticks on trees in the woods lol.
Someone in my area was in her apartment doing dishes while her kid was playing in the playground in the apartment complex's common area in front of the unit. (https://fox40.com/news/local-news/sacramento-mother-faces-ch...) Someone called CPS and complained that she was inside, while her kid was outside. Even though most anyone would agree it was a nuisance call, they still charged her and opened a case, telling her that if her child is ever out of her direct sight, she'll be violation of the rule they just made up.
Nothing stops CPS from making up their own rules. There's even an effort to specify in each states' laws that parents letting children roam free isn't legally endangerment, but despite having such language in their laws, a mom was recently prosecuted in Virginia, for similarly letting her child roam within a gated common area. (https://www.cbsnews.com/news/virginia-mom-child-abuse-convic...)