One of the houses that I looked at had a toilet that had been created by partitioning off a corner of the kitchen, the door opened directly into the kitchen.
My flat is pretty open plan (!) so that's basically the set up I have. I'm just grateful I have a door to the bathroom - my friend has a sliding glass door between bathroom and living room.
I've stayed in a fair few hotels in the far east with glass walled bathrooms. Fortunately I've always been travelling by myself but I've heard plenty of tales of couples and mates who have had the same thing.
One of the houses that I looked at had a toilet that had been created by partitioning off a corner of the kitchen, the door opened directly into the kitchen.
We decided that was a deal-breaker.