> At what time do you trust them to stay home by themself?

As a GenXer, ~12 (?):

* https://en.wikipedia.org/wiki/Latchkey_kid

Elder millennial here, though my sister was young GenX. I was born in '82, she was born in '79.

I'm pretty sure my parents stopped hiring baby sitters once my sister turned 12.

But even aside from that, I was allowed to play outside unsupervised at 7 years old. Though we did live on a Navy base at the time, so I wonder if that played a factor.