If people want to protest digital ID, simple, just say "I don't have digital ID" whenever you are asked to produce it. If it means looking into a camera, or any step that requires your cooperation, simple, just say "no I don't do that" Keep turning up to the places that require it and going through these motions. Take your time at every step. Grind them into the dust.

Same with cashless establishments - go there but only with cash. Get the service/goods and then offer the cash. If you need to pay cashless prior to receipt, go there anyway, and again go through the motions until the request, then say "no, I do not participate in cashless transactions"

If a facial recognition system gets installed, picket the area just beyond it's reach. Picket lines are very effective.