A bottom-heavy population pyramid indicates a large proportion of children and young people in the population. This demographic structure suggests a future need for several key societal services and infrastructure, primarily:
- The need to add schools and teachers: With a significant number of young people, there will be an increasing demand for education facilities and educators to accommodate this growing population of children.
While it may also imply future economic considerations like job creation as these young people enter the workforce, the most immediate and direct implication is the necessity for educational resources to support their development.
Thus, the best answer in this context is: The need to add schools and teachers.