DD is 14 (and a half!). We live in an exceptionally safe, rural Welsh town. She and her friends have been allowed quite a bit of outdoor freedom since they were young. Some of her friends of a similar age are allowed to stay out until 11pm. So far, the latest we've allowed her out until is 10.30 during the holidays and 9.30 on school nights, as long as homework is done. We're thinking of upping the time to 10pm when she goes back to school this term. However, I never really know what's reasonable, as it varies a lot with her friends. It's not really safety I'm concerned about, but tiredness, and the slippery slope to later and later nights.