I'm a little suprised by the amount of people who feel that an 8yr old is perfectly capable of supervising a 5yr old, I might start pimping mine out for some babysitting/school pick-ups as presumably there'd be some takers on this forum. The bottom-line is that if anything does go wrong (and I'm thinking of broken arms rather than clown-style abductions) the parents are assuming that other adults will salvage the situation (unless, of course, the 8 yr old is a trained paramedic). I'm sure most adults would help but feel its a bit selfish to rely on this as a form of child-care. For the record, I was allowed to walk to school when I was 5 but it was in a rural area in the mid-70's, a trip of 400m, and didn't involve negotiating very busy city roads during rush-hour.