Though it was July 2015 when Apple Pay was introduced in the UK, I have never actually used it until today!
I bought some parking on my phone and used Apple Pay to pay for it. Seamless process as I didn’t have an account for that particular parking app and hadn’t registered a card with it either. This is how I usually use other parking apps.
Having entered my car registration and duration, I then paid using Apple Pay, which only required a double click on my phone.
It was only a couple of weeks ago I had added a payment card to Apple Wallet, and hadn’t had an opportunity where Apple Pay could be used easily. If I could use contactless, then I would usually use that.