What is the best age for a child to become a hafiz?

There is no definite answer to this question. Every child's intelligence is different. Every child is a different world. There are children who are suitable at the age of five, and there are those who are ten years old. Definitely a special decision should be made for each child. We can say that: the child's memory starts from the age of five and continues until the age of twenty. As you get older, memorization may become difficult, but there is no such thing as impossible.