The frustration of proving one's age to buy things like alcohol and tobacco does not end when you reach the appropriate legal age. Those of us who are fortunate enough to have a youthful appearance are forever burdened with having to carry a state-issued ID card to every place where we might want to buy alcohol or tobacco. Over the past few years, we've been gradually subjected to another, more intrusive ID-related hassle -- that of electronic drivers license scanning. It's one thing when a government representative scans your driver's license; it's another thing entirely when a restaurant does it,...