@AviK
I did not say something is wrong with sharing a room, I said we didn’t not want our children to do so. Our parents shared rooms with siblings in NYC apartments. We were raised in houses in CT with our own rooms. We value privacy, quiet time, etc.
Our daughters are nine years apart in age. A 16 year old who goes to bed at 11PM shouldn’t have to worry about disturbing a 5 year old who is asleep at 7PM.
Our 3 sons are 5 years apart. I can’t imagine an 13 year old having to share with a 3 year old if the family can afford separate rooms.
It’s all about choices and parenting styles. I would not go into debt to avoid kids sharing rooms.