Born in 80, but "roam free" still had some restrictions. Summer time, during the day, you pretty much were wherever - bike riding to who knows where miles away with your friends, at your clubhouse (we used abandoned lots and houses), at the community centers, the parks, the schoolyards, friend's blocks, malls, arcades, movies...BUT you still had to be back on the block by the time the streetlights came on. But in the summer, that was like 9pm, so...
Throughout the school year, it was on the block or over your friends house, or wherever you normally went coming home from school - most of us walked to elementary/middle school - so the way home was the deli, the arcade, the food shop. Still had to be home before the lights came on, or within yelling distance.
As some others said, while we did roam free, the neighborhood was different and community was a real thing. Unless you were riding your bikes miles away, anywhere else you went, you were definitely seen and someone from the neighborhood kept an eye on you. They all saw you go to the store, wherever you were hanging out, knew your family, knew who you were with last time you were seen, so it wasn't really as "free." You were up to no good, and someone saw you...depending on the level of mischievousness, your parents were told.
The irony is that my gen - the last of the latchkey, we grew up fast. We were grocery shopping as kids, cooking, tending to the house, helping raise the younger siblings all the adult ish, learned how to get around - walk, bike, public transportation - so we were old when we were young. But in some instances, we didn't have full childhoods, but we knew how to navigate. These kids are enjoying childhood longer - a great thing - but they're not adapting to the world as quickly. A 25 year old now, and a 25 year old 20 years ago are worlds apart.