Digital membership cards in nonprofits convenience vs privacy trade offs?

I’d guess that there are a few companies in this space, and they pitch the non-profits on the savings: no cards, rarely a lost card that requires reprinting. Maybe also a computer system to check visits and dwell time if tied to a camera in the lobby. Perhaps they also take over the email lists and print services for promoting events in email and mail. I was disappointed that my local art museum moved to one of these systems, and in the app, i see piles of other art museums. However, the local museum still lets members in if you show ID.