Flawed stereotypes abound about bossy firstborns, middle-child syndrome and only children, but the true influence of sibling sequence is much stranger
Source:
https://www.newscientist.com/article/mg24332391-800-sibling-rivalry-how-birth-order-affects-your-personality-and-health/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home