I read the TFL website (including http://www.tfl.gov.uk/tickets/faresandtickets/1063.aspx). I also read the londontoolkit website and this forum. I apologize but I am still confused. My wife and I arrive in London this Thursday with our children ages 9, 11 and 13 for 10 days. I planned on my wife and I using Oyster PAYG for the tube and buses. The TLF website states "11-13 year olds need an Oyster photocard to buy child-rate Travelcards and to use pay as they go on the Tube, DLR and London Overground". I did not get Oyster photocards in advance for my kids. Does this mean that I am doomed to pay full adult fares (Oyster PAYG) for my 11 and 13 year olds? Is there any way around this at this point?