Answer: This is because of what the bible talks about sexual behaviors, especially before marriage.
Explanation: Sexuality is something important in the development of people and many times this can be influenced by various factors, the religious sphere being one of these. In the bible, there are several verses where it talks about the consequences of having sex before marriage.
A study carried out expresses that those married people who live under the parameters of religion have a very normal sexual life and that their beliefs do not exert any influence to not enjoy their sexual life, while for people who are not married this practice it is seen as negative. In the case of adolescents, this last result can be applied since there is much talk in religion about abstinence and living according to religious laws.