I actually find straight down to be really annoying and always struggle to keep water from streaming down into my eyes and face. I find the slight angle from a wall mounted shower head much more versatile for cleaning and comfort.

Really? The rail is on the wall but the head its self points down. Unless you are using the handheld part but why would you leave that on its holder if you are using that

That's some weird American thing.

Most countries normally have their showerheads on a cord that you can grab and direct wherever you want. Plus, occasionally, a wall-mounted one added to it. But you can just put the corded shower on a mount to the same effect.

Having a corded shower is pretty much the only way to wash properly without wasting tonnes of water.