很多家長在第一個孩子出生後，很快又面對一個重大的抉擇，應否再多要一個孩子呢？能夠三年抱兩，固然開心。但要多養一個小朋友，財政與精力上的負擔，也會有所增加。更重要的是，多生一個，讓子女有個伴，其實，對他們的成長是否一定有好處呢？
參考資料
Downey, Douglas B., and Dennis J. Condron, “Playing Well With Others in Kindergarten: The Benefit of Siblings at Home,” Journal of Marriage and Family, vol. 66, no. 2, pp. 333–350 (2004).
Donna Bobbitt-Zeher and Douglas B. Downey, “Good for Nothing: Number of Siblings and Friendship Nominations Among Adolescents,” Presentation to the American Sociological Association, Altanta, August 16, 2010.
Laurie Kramer, “The Essential Ingredients of Successful Sibling Relationships: An Emerging Framework for Advancing Theory and Practice” Child Development Perspectives. Volume 4, Issue 2, pages 80–86, August 2010
