Richard J. wrote:
Poldie wrote:
AndreaC wrote:
Also, can two people share one Oyster travelcard so that if I had a
zones 1-4, himself could use it on the days I'm not going to work
from his place if he didn't fancy cycling to work (which is what
he usually does)

Yes.

No. Pity you chose to contradict Paul C., who posted an hour before
you, without any explanation. To quote from page 3 of TfL's "Get the
most out of your Oyster card" leaflet: "If you have a Travelcard/Bus
Pass on your Oyster card it is for your use only so you cannot let
someone else use it." However, "You can let a friend or someone else,
use your card, if you only use Oyster to pay as you go."

Why is this the policy, and is it enforceable?

Incidentally, do paper Travelcards have the same policy? I was at
Edgware, trying unsuccessfully to persuade the ticket machine to accept
my credit card, when a random stranger handed me his day Travelcard.
(He did not ask for compensation.) Great, I thought, that solved my
problem. But the person at the gates, who happened to have witnessed
the transaction, would not let me through, insisting that the card
wasn't mine. Who was right?

When unlimited cards were first introduced in New York, the MTA made it
quite clear that unlimited cards could be shared. (Obviously, only one
person may use an unlimited card at a time, although that doesn't apply
to pay-per-ride cards, which permit access to up to four together and
keep track of their free bus transfers.)
--
David of Broadway
New York, NY, USA