The most important counterargument to address when speaking to the city council is: Keeping the park open longer would cost the city more money and funds might need to be taken from elsewhere to pay for it.
This counterargument is crucial as city councils often have to prioritize budgets and make decisions based on financial implications. Addressing this concern effectively can help to reassure the council that extending park hours can be managed within the existing budget or through alternative funding sources, such as grants, sponsorships, or community fundraising efforts. Addressing costs directly demonstrates an understanding of their concerns and can help to build a more persuasive case for keeping the park open later.