Evaluating the Role of Parks in Mental Health

In a recent article, the author argues that city parks are essential for maintaining the mental health of urban residents. The author points out that studies have shown that people who spend time in natural settings report lower levels of stress and anxiety. Furthermore, these parks provide a space for community interaction, which can enhance social support networks among residents. However, the author also acknowledges that maintaining these parks requires substantial financial resources, which could be allocated to other critical public services such as education or public safety.

Based on the author's argument, which of the following, if true, would most seriously weaken the author's reasoning?