He has already given us an initial proposal with a possible rough room layout. I quickly redrew it with Sweet Home 3D,
I was just about to say, leave it like that, for the architect it is good enough. But since it already comes from the architect, unfortunately it is too flawed: On the upper floor a load-bearing wall runs across the beam of the passage into the living room. The bedroom won’t work like that (passage in front of the bed too narrow) or (at the head end) only on the condition that the upper floor is not an attic.
Today unfortunately standard in many floor plans: access to the WC directly at the entrance door.
This idea has not just come about "today", to allow a stranger requesting to use the toilet into the castle of the home as minimally invasively as possible.
What do you do in autumn/winter when you bring in wet shoes?
I do not see the connection specifically to the WC. With wet shoes, you do the following: take them off and quickly grab the mop. What else?
The entrance to the bathroom on the ground floor is also next to the front door in our house. And the stairs going up are there as well. That's how I grew up in my parents' house, and despite the large number of people, it was never dirty anywhere. I don't understand the objections. Unless you have lived on a construction site for years and the yard is not arranged....