[InSteady]

To be fair, Starbucks purchases machines that are automated to a much higher degree than your standard high end espresso machine you'd find in a local shop. It's a lot more button pushing in the correct sequence, a lot less art. This is standard procedure for a multinational fast food service company: they want things automated and streamlined not only for speed of service and easy training, but consistency of the product.

From what I heard from a former Starbucks barista, the biggest challenge was to not scald the milk during steaming (which is not very difficult, basically just requires holding it at the correct angle to induce a whirlpool effect and keep things moving).

The skilled aspect is dealing with customers efficiently and pleasantly, and all the nuance/craziness that can entail.