My two DC (age 9 and 7) both go to grandparents after school twice a week but it’s getting quite a lot for GPs as they also have my nieces. Eldest is now able to walk home by himself (10 min walk). DH and I WFH both days. Our jobs are very full on and we couldn’t supervise them after school but DCs could watch TV etc and obvs if there was an emergency we’d be there. At what age do you think it’s ok to start letting them walk home and entertain themselves for a couple of hours till we finish work?