It varies with the format of store. If you're a clothing store, if you're a footwear store or a confectionery store, it's not something you would normally offer to your customer, because a lot of your business is no longer cash.
If you're a mass merchandise store or a supermarket--a large big-box format--where there's a lot of cash, it's a very attractive option to offer to your customers and for you. So it's really driven by the need to serve the customer and to provide that facility to them. So for certain formats it's very popular, and they're happy to provide it to their customers.