How to correctly organize a children’s room

The dressing room is a very comfortable place. Which, in the case of a large number of various things, has recently become just a necessity. What should be the first stage when planning a dressing room? Of course, in the case when we are talking about a huge, beautiful country house of very impressive size, in which overhaul is planned, the creation of a dressing room is not a luxury, but rather a trend in time.