[Michlib-l] Library cards scanned into phones

Collective Wisdom, Do you accept library cards scanned into a phone to check materials out from your library? If so, do you require additional ID or do you have a library ap to use with the scanned card? What are the pros and cons of accepting or rejecting scanned library cards? Currently we only accept a library card or personal ID (such as a driver's license or student ID) for checking out materials. We have not accepted scanned library cards, but are considering it. I have followed arguments for and against, and am wondering how common the acceptance of scanned cards is in Michigan. Thank you for your input! Martha Lee Head of Support Services Orion Township Public Library, MI