Single-family house, approximately 160m², Bauhaus style; first draft according to our wishes

Wake-up times? Advantages? Am I not understanding this correctly, or don’t I have this problem because I bridged wake-up times with two doors?

The stair wall is only handrail height – that was unclear in the sketch (walls are usually shown in a different color, not ceiling height). Then I think the "handrail" is okay after all.

I have no objection to skylights either, but I wouldn’t do that in the bathrooms. Rather split the windows and put frosted glass at the bottom or another pattern. Or simply curtains, or transparent Roman blinds, or, or, or...

But you still always walk right past the foot of the bed, have to go back if you forgot something and start over.
I find this door unnecessary and, as I said, the first plan for it was much better. We enter the "sleeping area" through the dressing room, then to the bed on the left, to the parents' bathroom on the right, so you don’t have to walk back to or past the bed after getting up. Since I sometimes have late shifts and can stay in bed a bit longer, this turned out to be an advantage, I’m glad it is the way it is.
In addition, your plan lacks the hidden, cozy, and comfortable aspect. For me (!) that’s totally positive, others might feel cramped, so that is completely subjective and depends on your feelings.

with the motto: "YOU go into your bedroom and see a huge wall front"

OT: I just saw this on Amazon and spontaneously fell in love with this absolute kitsch:

Even if I am probably too late and everyone likes the corner/corner doors between living room & kitchen/dining room. How cool would it be to simply leave them out, especially with the beautiful staircase. Yes, of course everything is open but I would really find that kind of spatial feeling amazing. I am positively biased. I just like something open like that