That's too much for me. It adds up to that entity having a record of all my transactions, who they're with, and how much they are. Def not private like cash.
A product that's a violates my principles _is_ a problem.
More practically, being surveilled creates a data store about my life that can last forever, theoretically. It's hard to conceive how that could be used if (when) that data gets mishandled. Might as well not leave a trail.