People who have a fingerprint sensor on their phone since that eliminates the unlocking step and the entering PIN step.
All I do is bring my phone close to the reader and the screen automatically lights up with my list of cards. I tap which one I want and then put my thumb down on the fingerprint reader to authorize. The whole thing takes like 3 seconds. Also, isn't is more secure with 1 time use tokens?
My phone is my wallet. I have a case that has room for a few cash bills and a plastic card or two, but I have to use the space for cards like my drivers license. I like that I can have my credit cards on my phone digitally to use.