When I drive in Mexico, I don't have to get a Mexican driver's license ----if a state doesn't want to arrest someone because they're driving with a Mexican driver's license, it's one thing ---giving them a state driver's license implies they're legal residents and they are not. Here illegals can use their Mexican licenses ---to me it's better, the local cop might not ask them their immigration status if they present a Mexican license and weren't committing some serious crime but they can't use those licenses for getting back and forth over the border easily as they could if they had a US license.