I was talking about it with some friends from childhood who said they never showed one either. They did remember we had to prove we took driver's ed to get our permits. :D
For the three of us, our driver's licenses are not proof of legal residence in the United States. The largest groups at my high school were Asian (40%), White (40%), and Hispanic (15%) and this was in the late 80's.
So for us to go to Arizona, it would seem that the law will require us to carry proof of legal residence. In fact, when I float down the Salt River, I purposely don't bring any ID at all because I don't want to lose it.
But the idea that I should bring a passport or birth certificate to hang out in Arizona --or that my friends from high school should,
that's just un American.
Almost as upsetting is how many people here defend the concept of being asked for one's "papers" (to prove legality) when walking around a State in the US.
:rant:
on edit: since some are doubting that I didn't need to show proof of legal residence:
"Since March 1, 1994, new applicants for licenses have been required to present one of 20 documents - ranging from passports to birth certificates to work-authorization cards. No longer accepted for identification are easily forged foreign birth certificates, U.S. baptismal certificates or out-of-state driver licenses."
http://community.seattletimes.nwsource.com/archive/?date=19951203&slug=2155868