BevMo stores have been scanning ID's for anyone who "looks under 50" for quite some time. Why not just show the ID to the clerk long enough for them to verify, whether they do or not, place the money down on the counter and walk out with your purchase. Even "secret shopping" services do a version of that all the time.

The RFID chip within passports can be smashed or microwaved in order render the chip useless. No RFID security wallet necessary.