I'm far more likely to have my wallet on me than my phone. Credit cards have infinite battery life, 100% waterproofing, no real-time tracking/spying and low to no cost to lose. Cash trades out the low cost to lose for anonymity.
Yes. They sell wallets with Faraday cages. I have been so far able to push off contactless cards, so I just assumed that other people who care about avoiding realtime tracking also insist on chip only.
