Final answer:
Sharing is generally a beneficial practice that leads to collective benefits and relationships enhancement, exemplified by electron sharing in atoms and in human societies. The challenge of 'free riders' arises in groups where members can gain benefits without contributing, highlighting the need for balancing individual and collective efforts.
Step-by-step explanation:
Sharing within a community or group is generally considered a positive practice as it can lead to collective benefits and enhanced relationships among individuals. In the context of electron sharing in atoms, it is an essential phenomenon that leads to the formation of molecules and compounds, illustrating that sharing can result in new structures and stability. Similarly, in human societies, sharing can promote cooperation and collective goods, which are benefits that are accessible to all members of a group.
However, the concept of sharing also introduces the challenge of free riders. Those are individuals who benefit from collective goods without actively contributing to their provision. This issue is prevalent in various types of groups and organizations, including interest groups, where the work of a few can benefit the many, sometimes leading to disparities in effort and contribution among members.