@Meno
Yes, bathrooms.
Personal hygiene is strictly a private matter. B”H none of us has to feel rushed to bathe, do hair, use the facilities in order to get out of the house in time for school or work.
I love a long soak in the Jacuzzi tub, but wouldn’t want that to keep someone else out of the bathroom.
This may surprise you, but Mrs. CTL and I have separate bathrooms (as did my parents). This has been particularly important while she has been so ill these past three years. For example, her soaking tub has a battery operated chair to assist her getting in and out. Her commode is extra tall for ease of use and her shower room is made to wheel in and out with a wheelchair when it was needed.