Good point. Does one really need to know how to code up a neural network in order to just use it? This has been my biggest frustration with some teachers of Machine Learning. They need to abstract away the innards and provide a usable high-level interface. I know this is hard to do. ML isn't magic ... you have to know what you are doing. But the same can be said for the automobile when it was first invented. Today, to effectively use a car, you don't need to know anything about engines.