In message . com, Neil
Williams writes
asdf wrote:

Not really an answer to your question, but TfL don't like unregistered
Oyster users much.

Which is a bit silly, because if they really didn't like the use of
unregistered Oyster cards, they could just make it compulsory to
register when obtaining the card!

That would be a barrier to people agreeing to use Oyster. There are
plenty of people around who think that the State [sic] have too much
information about what people get up to.

In this case, there are benefits for those that register; but those that
chose not to register can enjoy most of the functions of Oyster. Not
registering for Oyster is also quicker for those in a rush when they
first arrive in London (they can register at their convenience later).

--
Paul G
Typing from Barking