They become more discerning and learn a real sense of what they like and dislike. This can only be beneficial for them. They feel respected when their opinion is given room and valued. Permit complete freedom in choice of reading material. They are less likely to be difficult over other matters.
Kids usually have strong reasons for what books they choose.
My daughter loved the book about the new baby when my son was a newborn. My son loved the books about school kids when his sister went to school, leaving him at home all day alone. Their choice will give you valuable insight to their inner thoughts and help you understand what is important to them. The easiest way to read to make reading aloud fun, apart from putting some expression into it, is by using different voices for each character. This doesn t have to be difficult.