My mom used to take the bus into the city when she was 8, spend the day wandering around, and come back on her own time. This was in the 70s with no smartphones

My mom used to take the bus into the city when she was 8, spend the day wandering around, and come back on her own time. This was in the 70s with no smartphones. If there was an issue, she could use a pay phone. Her own mother sent her out of the house to get some free time for herself. When I was growing up, I did similar things, taking my 5 year old sister on the public bus with me to get to school when I was 10. If I had some pocket change we’d get ice creams from McDonald’s on the way home. It depends on what neighborhood you live in, but the world is very safe today and if you’re on HN I assume you’re in a decent area. I think parents have too much time and energy today to spend worrying about their frankly very competent kids. The smartphone thing is a good idea but I really think it’s best to push your kid out of the nest to discover the world themself, lest you end up with a grown up daughter who’s afraid of the world.