Evo pogledah. tvoji klinci jesu u ovoj kategoriji, pa ne placaju prijevoz.
https://www.londontoolkit.com/briefi...card.htm#child
Under-11s can travel free at any time on buses and trams without the need for a Oyster ID Card*. You do not need a ticket for free travel.
They can also travel free at any time on the Tube, DLR , Overground and any TFL train service when they are travelling with an adult who has a valid ticket. Up to 4 children under 11 years old accompanied by a paying adult travel free.
Travel on the national railways which operate suburban commuter trains in London only have free travel for those under 5. In the last year or so many train routes in London have switched from the railways to TFL Rail. Confusingly a few national railways routes where both rail and TFL rail operate on the same tracks children under 11 can travel free on the railways trains - this includes the popular route for visitors between Euston and Watford Junction (for Harry Potter Studio Tour).
Unaccompanied children between 5 and 10 must have a valid Oyster ID Card*.