This actually raises an interesting questions, my sample space is limited, but I have been to the US several times (work related), the showers in the hotels I have been to are almost always of the type with a fixed shower head in one end of a bathtub - whereas here in Denmark, and most other places I have been to, you might have a fixed shower head, but you almost always have a free moving shower head too - like the type you can take in your hand and point in any direction at any part of your body. I don't know if I have just been unlucky with the hotels I have been at in the US? but... I mean.. it is not only my hair that needs to be cleaned, and it is not even every part of my body that can be reached by water coming from above... I'm not that agile...