All models are wrong, but some are useful. I thought you just used hydro on simple RLC circuits, and kept it at that? For semiconductors there's no reason to

All models are wrong, but some are useful. I thought you just used hydro on simple RLC circuits, and kept it at that? For semiconductors there's no reason to invent a hydro equivalent that doesn't exist, what's the point? You want a model to be intuitive to the student, and a made-up thing won't be. As you go further with EE, things also tend to turn into a sort of logic gate puzzle rather than a continuous (voltage-current) problem. That's a while other analogy whose limits you also need to know.