I've tried looking for this info on the tfl site but I haven't found the answer to this specific question!
If we're travelling on the underground with 2 adults and 2 under 11's, the children travel free, is that right? If each adult uses their contactless card for payment, how do the children get through the turnstiles?
Or are we better off getting some kind of oyster/travel card, rather than using contactless? We'll be going from zone 7 to 1 and back again.