The rule in our house was to be in when the street lights came on.
Being an Army brat, and living in NYC, on a closed RAF/USAAF base, and in downtown London gave me plenty of opportunities to expand my horizons.
For example, while living in housing at a closed RAF/USAAF base in Norfolk, England, we kids would ride our bikes on the closed runways, and would explore the old buildings. I was only 8 at the time, and did not appreciate the history that we handled. Those buildings looked like someone said "let's go home" in May of 1945 (I was there in 1964), and they did, leaving everything behind. The RAF buildings had pictures on the wall of the King and Churchill, the USAAF buildings had a picture of FDR. All of these buildings had file cabinets full of aircraft and mission records, there were full ashtrays on the desks, and all the other things that an air wing would have in its offices. Hangers were more open to the elements, and had tools and aircraft parts rusting away. The offices were in pretty good shape when we first found them, but after weeks of playing we destroyed much of the historical importance. Our folks never knew what we did, but we were home before it got dark.