You can get a state issued photo id that is not a driver's license. It just happens that nearly everyone has a driver's license, which is also government issued

You can get a state issued photo id that is not a driver's license. It just happens that nearly everyone has a driver's license, which is also government issued, so its convient to combine the two cards. Though state issued ids prove different things. For instance, states conforming to the REAL ID laws it says that you are a legal resident. For other states it just means that the state issued you an id card.