Well, there are two issues: firstly, it’s trickier dealing with travel card negotiations at railway stations because there’s more than one operator. In terms of the metro, it’s essential that there is an integrated Oyster-style travel card available, although even in London now, of course, it’s possible to travel simply by using a contactless debit card. So, actually, Oyster cards are now even less essential than once they were. For some people, of course, they’re important—for those who don’t have access to contactless cards, yes, they need them to travel—but it is absolutely crucial that the network of the south-east Wales metro has one card that covers all journeys within the metro area. Otherwise, of course, it’s not an integrated system.