Quiet right, CornedBee. And yet another reason to be carefull around auto.
But for all purposes the example shouldn't even be there, in my opinion, because it suggests exactly what I'm against with; an oversimplification of its true usefulness that will introduce a new crowd of bad code and hard to track bugs. It pains me especially that it is advertised as being introduced to help the life of newcomers to the language.
Personally I feel auto is an advanced feature that is (un)fortunately extremely easy to use. This contradiction only means use and abuse of auto will probably become all too prevalent.
