Can you tap your contactless card at the barriers to pay for several passengers, e.g. by handing the card to the next one coming in? Or this this method only for single travellers?
> You can pay for someone else's travel with your contactless card or device if they're travelling with you. You need to pay for your own travel with a different card or device.
Single traveller per card. You also have to tap out at the end so it can calculate the fare.
If you have more than one card you can let others in your group use those.
Though it’s been a few years since I was travelling with anyone who didn’t have either a contactless card or Apple Pay / the Android equivalent, which also works and is arguably even more convenient.