I think more and more people want to live alone. You can be a couple without being in each other's pockets. I don't see why you have to share the same bathroom.
If I really like the smell of something - a piece of tar or my goddaughter's plastic doll - I put a tiny piece in a bottle with a label. I keep them in a fridge in my bathroom.
I had trained myself not to go to the bathroom throughout my elementary and junior high school years because I was bullied. And you don't understand why you're being bullied, so you just suppress it.
Having a separate bathroom for the black domestic was just the way things were done. It had faded out in new homes by the time the '70s and '80s rolled up.
I guess I'm not that metrosexual. My bathroom cabinet is hardly overflowing with products. I only really have my stuff for shaving. I can't honestly say I moisturise, though I probably should.