In Pittsburgh, I get carded at bars when they card everyone on the way in, and sometimes at the liquor store, but never at the beer stores.
In Maine, I get carded at bars when they card everyone, grocery stores, but not at the beer store, and not at restaurants.
In Nevada & California, I get carded at the beer store, at restaurants, everywhere. Even with my parents!
Never did I figure California would be more likely to card.