There are tons of wallets out there with RF blocking and it’s also very simple to add to an existing wallet using some aluminum foil or similar. As for the phone, you really should always require entering your pin or biometrics authentication before accessing your sensitive data like credit cards in addition to the phone needing to be unlocked. This should be done even with current tech because the scanners that thieves use have had much longer range for a long time. They don’t care about following standards or RF interference laws.