Remember to stick to your principles when changing water and electricity. Don't listen to the plumber. He will always hint that you don't need it here, but you want to be lazy. After installing the switch and socket panel, it won't be ugly at all. Even if you don't use it now, you are not sure when you will use it. The more sockets, the better. It is more convenient to use an electric fan in summer and a heater in winter!