Modern Japanese use bath water in a very similar way. Kids first, then parents, then grandparents. The Japanese are very frugal with water. In a toilet you may

Modern Japanese use bath water in a very similar way. Kids first, then parents, then grandparents. The Japanese are very frugal with water. In a toilet you may see a sink placed right on top of toilet tank, so the water you use to wash your hands is used right away to flush the toilet.