DSC are 15 and 13 and are with us 50 % of the time. DH still picks them up and drops them off at their mum's house rather than then getting the tube or bus (we live in London and it's a 30-40 minute journey). At which point can I expect DSC to come and go by themselves? They travel to school by themselves on the tube so just seems a bit off that DH still does formal pick-up and drop offs.