The trick is, most newcomers aren't just bothered by auto and would like the explicit type here. What they want to do is actually pass that output into another

The trick is, most newcomers aren't just bothered by auto and would like the explicit type here. What they want to do is actually pass that output into another method. And in that method they need to know the type. I mean, you could accept input range in the method, but then you are losing some typing information.