Final answer:
Our willingness to help non-relatives often depends on the expectation of reciprocal benefits, in line with social exchange theory and influenced by evolutionary and sociocultural factors.
Step-by-step explanation:
Various studies suggest that our willingness to extend help to non-relatives often depends on the expectation of reciprocal benefits or rewards, contrasting with our more altruistic behavior towards relatives. When it comes to those we are not related to, altruism may decline, and social exchange becomes a prominent factor in our decision to offer assistance. This expectation of exchanging benefits aligns with evolutionary theories, which suggest that behaviors that increase the likelihood of our genes being passed on tend to be favored through natural selection, such as kin selection that encourages helping close relatives. Furthermore, sociocultural practices like filial piety play a significant role in shaping our predisposition towards assisting relatives over non-relatives. These practices foster a sense of moral duty towards one's family, often placing less importance on the welfare of those outside of this group.