Taiwan Province Province, why is the bathroom called the dressing room?

Probably because women always put on some makeup when they go to the toilet, it is also called "dressing room". Besides, if a man and a woman are dating, if a girl says, "Excuse me, I have to go to the bathroom." People feel that there is no texture. If it is changed to:' Excuse me, I want to go to the dressing room. It will make people feel good quality and texture! So it's a polite way to say it in Taiwan Province province!