Have just asked at the tube station about this free travel lark. Apparently, it is just the buses that are free, not tubes. Instead of tube season tickets children need to apply for children's oyster cards, filling in a form only available from main post offices. These forms are not available from the tube staions, which seems stupid to me. Why has there been no publicity about this change before the start of term? Buses were free anyway to holders of children's and others' travelcards, so no change there.
Lucy Chambers ● 7180d