> There's a weird kind of asceticism around the notion of paying-ones-dues on an acoustic first

So true. They are really two different instruments due to the avaliability of much more sustain on the electric, and the dimensions of the neck and frets. Also on the electric the use of a pick is pretty much a given if you want the most speed.

I started on the electric and can play acoustic correctly, however if somebody wants to play electric, should start with electric, and viceversa.