Drained

Will someone please explain to me why the drain in my shower is smack dab in the center of the stall floor? Nearly every time I'm in there one of my feet is covering the drain! Needless to say, this does impede the outflow of water. In fourteen years I have never come close to flooding the bathroom due to this inconvenient drain placement. But it seems to me that when bath fixture design people are hunkered over their drawing boards, they might want to rethink putting the drain where the showeree most likely will be standing. Yes, I do realize the illustration is of a kitchen sink variety of drain. I just liked the tiny cyclone effect.