Many will have a long term travel pass attached to the Oyster, and these can be valid for as short as a week or as long as a year.
Buying a single ticket for one journey is very rare, you are penalised financially very heavily.
For the tourist or those making short visits to London there are aspects of the Travelcard that make them very appealing and if understood can make Travelcards cheaper than Oyster Cards or contactless payment cards, especially if you are visiting the major sights on a first time visit.
So all in all it can be quite confusing for the visitor planning their visit to London to make an informed choice.
The concept is simple, but in ticketing terms the ramifications have been huge.
For the new bus hopper arguably represents the first introduction of new ticket functionality on London’s buses since the arrival of smartcards.
The contactless payment card is the new option available and the authorities have hopes this may become the dominant channel in the longer term.