The NSPCC, a leading charity for children from the UK, has published a guide that can be useful to parents and guardians when deciding whether to leave a child at home or allow them to go outside alone.
The guide provides practical advice, as well as some of the risks to consider before making a decision. It discusses a child's opinion about the idea, and who they can turn to in cases that require urgent action.
The guide provides checklists for parents and children to use together when making a decision and preparing to enact it. There are also questions about what to do in case of an accident, an encounter with a stranger, or if another dangerous situation occurs.
Download Home or Out Alone: A guide to help you decide if your child is ready to stay home or go out alone
https://learning.nspcc.org.uk/media/2614/home-or-out-alone-guide.pdf