The latest episode of 99% Invisible does a great job of covering this topic. I highly recommend it.

http://99percentinvisible.org/episode/of-mice-and-men/

A great analogy used in the piece (spoiler?) compared PCs to bicycles and tablets and phones to tricycles. Anyone can just hop on a tricycle and go around the block, but you need to learn and practice riding a bicycle. The thing is, you cannot commute to work on a tricycle. The counter argument is that modern smart phones and tablets are closer to 3-wheel recumbent bikes than tricycles.