The age at which one becomes an adult varies from person to person. Factors of determining this include life experiences, which play a role in how someone matures. If someone experiences an event, which causes him or her to realize the responsibilities of an adult, they might mature to one more quickly. Also, one could become an adult quicker depending on the type of person they are and how they mature. These factors also depend on society and the around someone and society changes often which affects people maturing.