How does lack of role models lead to HIV and teen pregnancy?

There is no direct causal link between a lack of role models and the prevalence of HIV and teen pregnancy. These issues arise due to a combination of various social, economic, and behavioral factors. While positive role models and mentors can undoubtedly have a beneficial impact on young people's decision-making processes, the absence of role models alone does not directly cause individuals to engage in risky behaviors leading to HIV infection or teenage pregnancy.