Social overload: When there are too many social interactions or stimuli happening at once, it can overwhelm individuals in large cities and make them less likely to engage in acts of altruism.
Anonymity:In large cities, people often don't know each other personally, which reduces the sense of responsibility or connection towards strangers.
Diffusion of responsibility: With so many people present in large cities, individuals may assume that someone else will help those in need, leading to a decreased likelihood of taking personal action.