1, can be divided into separate bath room. Toilet and restroom facilities are in China together, install the bath room is a more sensible choice. So you can create a relatively independent bath room to avoid mutual influence daily life.
2, save space. Some families the small space in the bathroom, not bath, and shower room can save a lot of space.
3, there is a shower room, when you use the showers water won't spill out the whole bathroom floor wet.
4, winter, using the shower can also play a role in insulation. In the water together in a small space, heat is not quickly lost, make a person feel very warm. But if the bathroom is large, and no shower, even if the heating, also tend to feel very cold.