this feature's been available on Chase (UK) cards for at least 2 years and it's been the right pain in the a** for online purchases. For offline... I don't remember having to hand over the card to anybody, all shops seem to be using the touch readers...
ahh the classic "because I don't need it right now, then it's useless, and dumb for anyone to need that"
I like the idea and, as a happy Revolut user, I'll probably apply for a card like that (if it costs less than 5 euro)