Well I was brought up on the level , with one bathroom with loo, when I married we lived in a flat converted from a house, the bathroom had been a pantry to the original house, we then moved into a converted inn, with a loo beside the kitchen and the bathroom, made from dividing a bedroom, you had to walk through the bedroom to get into it, we were going to take a bit of the other bedroom to create a small hall, but we moved instead, to a three bedroom house with one bathroom loo upstairs, it was the coldest house in the world, it had one coal fire in the living room for heating, it had a back boiler to heat hot water, I remember getting a frozen chicken out of the freezer 2 days later it was still frozen, I only used the bath once, I used to get up and walk half a mile to my mum who had full central heating on the level house.
We then moved to a two up two down that was 10 ft wide, there was a fabulous extension with a 25 foot kitchen and bathroom, then we moved into our town house, 3 levels, one ensuite and one bathroom on the 3rd floor, and a shower and loo on the ground floor.
Would love to have a steam room rather than a sauna maybe on the next move