Childhood is the best period of life as there are no restrictions, no deadlines and every day is a celebration. This is best understood by the ones who have a brother or a sister. Having an elder sister or brother makes life so simple as sometimes you can share your secrets with your sibling which you feel that you can't share it with your parents. A new study finds that kind of relationship you are having with your sibling affects your interests and taste. A study on students in the age group of 15 years and above found that siblings which were more attached to each other in childhood are more likely to get similar levels of education. When parents go biased with their children then they are more likely to achieve different level of education. A research by Xiaoran Sun and Susan McHale said; School achievement may not be the only factor determining what level of education a person achieves. While school is obviously important, this study helps show that what goes on inside families can have an impact, as well. A lot of research on child development found that most of the parents are focused on the development of one child only, the main reason behind this is that you want to see what results this child will come up with in his social life. The research also found that how it affects the levels of education among siblings. Sun said; when siblings felt more warmth for each other, they had a close relationship in general.