This is a followup to my earlier question. Are there any libraries that only issue electronic "cards" to patrons?
I know many libraries have ways to look up a patron record if their library card is not present--home phone number, address, name, whatever. I'm not asking about libraries that have an alternate means to look up a patron's account. I'm curious if there are any libraries that strictly don't even offer a library card, and do everything electronically.
If there are such libraries, what were the motivations for the switch? And what credentials must a patron provide to borrow books? And lastly, has the experience proved successful?
I'm not asking about super tiny libraries, like the one in the city I grew up (with a population of 500 people), where the librarian knew me and everyone else personally, so there weren't even library "accounts"--we just wrote our names in a small book at the desk, next to the title of the book we were borrowing.