Hmm, well, the entrance area would also be too narrow. And I would also have concerns that the children in the rooms might not sleep well if the rooms are directly adjacent to the living areas wall-to-wall. At least you would then have to consider making these walls thicker and perhaps using sand-lime bricks for soundproofing. (e.g., the dishwasher runs in the kitchen from time to time, and also the water pipes, when the children are supposed to be asleep from 7/8 p.m.)
Edit: Also, be sure to position all doors so that you still have 70 cm of space behind each door, for example to place a wardrobe or a shelf behind the door.
It would also be good if you furnished the floor plan with to-scale furniture. There are free programs for that available on the Internet.
What is meant by zoning you can see, for example, in a floor plan "Bungalow Balance" or "Bungalow Trio" from Kern-Haus. (These caught my eye quickly as examples during a Google search.)
But post the site plan and more information, then we can certainly say more about it. At the very top here in the forum, there is also a thread pinned with a questionnaire, which you should best fill out right away, then it will be even easier for us to assess the design.