Scary statistics from the US. Here's some anecdotal data from Norway (my daughter being the data, she's 11):

- Walked in a different aisle at a store. My daughter started going to the store alone from she was about 7.

- Talked with neighbours without parent. Uhm. That's just weird. I'm assume she was around 4? That's when we moved here..

- Made plans with friends, yeah, from she was around 5/6 or thereabouts.

- Walked/biked w/o parent: From 6/7, to/from school, and to friends.

- Built a structure outside: She's been part of building various structures in scouts.

- Sharp knife: Since she was about 6 or 7.

And now I realize I need to wag my hands a bit back and forth with all the 6-7 stuff.

Anyhow; one of the best things we did was ensuring she joined the scouts. Creates incredibly independent kids. I've seen threads on reddit where people are wondering if it's OK to leave the 9 year old at home alone for 30 minutes, and I'm wondering what kind of lunacy that is. My daughter has been capable of walking / biking home from school since she was 6 or 7, and proceed to make her own afternoon snack before we arrive home from work. She's been baking since she was 8. Making toasts, omelets and whatnot since the same age. Scouts taught her how to use a gas burner outside when she was about 8 or 9.

I mean; come on.