MacGyver is depicted as an ally to social and environmental causes. He aids vulnerable populations throughout the series. During vineyard worker strikes, MacGyver assists Latino protesters against vineyard owners. MacGyver appears to have a strong connection with children, filling the role of "big brother" at the series' inception. MacGyver demonstrates his allegiance to children by assisting a mountain excursion for delinquent youths. MacGyver also conducts hearing research at a school for deaf children. In regard to the environment, MacGyver strives to protect endangered species such as eagles, the black rhino, and wolves. At an unspecificed date during the series, MacGyver begins practicing vegetarianism.