I wouldn't say having my nine year old caked in make up taking Selfies in Mcdonalds was something to aspire to, personally.
Although the above made my eyes roll to the back of my head, here's how we work it.
Live in a small town (moved from London suburb a year ago).
DD is 11 and in Year 6. She has slight ASD, some traits help with independence, some make it harder.
She's had a phone since she was 10, because I think kids are growing up in a world of technology and it does no good to pretend they aren't. Let them grow up with devices and teach them from day one about sensible usage and responsible behaviour, like you would with any other life tool. Sensibly used tech is a positive thing.
She's walked to/from school from just after the beginning of Year 6. It's a (slow) 10 min walk, with one road to cross. We had some slight issues early on, but it's fine now.
She goes to the shop (round the corner) about 120000000 times a day.
She sometimes meets her best friend in MaccyD's on a Saturday (gasp), with her phone (gasp), although they are both too lazy to bother with makeup (do I get some middle class parenting points back now?). It's in between their houses and about a 10 minute walk for both. They buy a McFlurry, feel grown up for 1/2 hour and then come back to one or other of the houses.
She's allowed to go to the park at the top of the road for about an hour or so, though normally with a friend, not on her own.
She'll take the dog for a walk by herself.
I'm considering letting her go, with friends, into town 'proper' and have a mooch around there for a couple of hours on a Sat. One of them lives in the centre of town anyway.
She'll be going to/from secondary school by herself in Sept. But that's even closer than primary.
She's home alone very occasionally, although normally there's one friend or another around too. If I go to the supermarket (5 min drive) or pop out to pick up a takeaway or similar.
Very occasionally, if my DP is away, she comes home to an empty house for 30 mins while I'm on my way home from work. Again there's normally a friend or two in tow.
Things I won't let her do:
Go out after dark (or even after a sorta unspecified 'late' time in my head)
Go out alone on her bike. She's not done bikeability and her dad has taught her all sorts of behaviours I'm not comfortable with
Go out if she isn't clear about where she is going and what time she is coming back
Be uncontactable while she is out
I also require written permission (like texts) from all relevant parents if she has friends around and they want to do these sorts of things.
We're doing ok. There's been a couple of hiccups (generally to do with going to/from school for some reason), but I think she's getting there with the balance of independence and responsibility.
Fuck all I can do about the trendy clothes and the selfies though.