In a society where individuals' success is largely influenced by their family background and social connections, what underlying cause affects upward social mobility the most?

In a society where family background and social connections play a big role in success, the underlying cause that affects upward social mobility the most is the unequal access to resources. People from wealthy families often have better education, networking opportunities, and financial support, which can help them succeed more easily. For example, a student from a wealthy family might attend a prestigious school and meet influential people, while a student from a less wealthy background may not have those same opportunities. This creates a cycle where those with advantages continue to thrive, while others struggle to move up. Therefore, addressing these inequalities is crucial for creating a fairer system where everyone has a chance to succeed based on their own abilities and efforts.