that's odd... my post didn't take...
I don't know if it's local, state or national, but most stores I go to to
purchase beer, wine or spirits have a sticker or two on the door - "be 21 or
be gone" and "can I see your ID?" with some explanation that they card
everyone who appears to be under 30...
Since this is relatively new (or the strictness is relatively now) it might
lighten your load if there's some place to post such a sticker or sign.
Most women I know love to be carded (they take it as a compliment). I got
carded TWICE on my last trip to the liquor store - once as I checked out and
once after (by the manager). I play along, hand over the ID and get a chuckle
out of their reaction. Apparently I look about 18 according to the manager.
Add 12 and you got it. :)