Sometimes, due to economic circumstance or family size, it is not possible for all children in a household to have their own room. If it is possible, however, there are many benefits -- both logistically and for the sake of child development. If you are able to, give your child a space all her own to help her to develop independence and responsibility as she matures.
Protection of Possessions
A child with a younger sibling will appreciate having his own space where he can keep toys, books and other possessions safe from the sometimes-destructive hands of a smaller child. Complex puzzles and construction sets that are not finished in one sitting can be kept behind a closed door and not be damaged by a curious younger brother or sister.
Sometimes children like to play alone. Having a room to herself can be a refuge to the child who likes to read quietly or play by herself in the vivid world of her imagination. If your child is a thoughtful introvert, time by herself can help her recharge.
A Place to Cool Down
Some children deal with anger and frustration more effectively if they have a place to cool down. A child who just had a fight with a sibling may benefit from some quiet cool-down time in the sanctuary of his own room.
A Lesson in Responsibility
Having her own room can teach a child responsibility. She will learn about keeping her toys tidy and her clothes put away where they belong. Make cleaning her room and straightening her bed as routine for her as brushing her teeth.
Control of Environment
Giving your child his own room means that he has a place where he has some control over his own environment. Allow him to decorate his room the way that he chooses. This could be as simple as choosing a paint colour for the walls or the location of his posters. A child's room is the place where he makes these decisions -- not a parent or sibling -- giving him a more solid sense of self-esteem.
As children get older, they learn about privacy and want more of it. Having her own room allows your child to get dressed and undressed behind a closed door without feeling self-conscious or embarrassed.
A Place to Host Friends
When your child has a friend over, chances are he won't want to be interrupted by a tag-along younger sibling. If your child does not have to share a room, he and his friend will have a place to socialise without being pestered.