After a certain height your weeds aren’t providing any extra value to pollinators and are just inviting creatures that carry disease to hold up there. That’s why the city insists on cutting them. Just keep your weeds to a reasonable height, it still helps the pollinators and keeps rats from breeding incessantly. Untended to yards are shown to increase rats in the area. You don’t want the plague do you? Cuz that’s how you get the plague. (The last two sentences are hyperbole obviously.)