Old Su

Old Su is a renowned child development expert and author. They have written extensively on child development and parenting, and have been featured in several media outlets for their expertise. Old Su has a strong background in psychology and has worked with various organizations to develop and implement programs for children's emotional and social growth. They are known for their insightful and practical advice on child development and parenting. Old Su is a popular speaker and has written several books on child development and parenting.