Re: The Law of Unintended Consequences
And you cant claim that back.
That's the price of being a tin-foil hatter or privacy extremist (not knocking either, just sayin'). If cost and the activation journey is an issue rather than privacy, just use a contactless bank card to pay on buses, tube etc. Works as well as Oyster, isn't pre-pay, doesn't need activation. And from a tech point of view I was well impressed the other day, when a ticket check on the DLR was able to immediately verify my bank card as being valid for travel whilst we were moving under the Thames.
Admittedly using your contactless card means you're trusting both public and private sectors with your journey data, but they've already got your movements in far more detail if you're carrying a mobile phone (other than a burner, and even then it could be cross referenced to CCTV).