Windshields get dirty but not at this rate. When I was instructing I’d spend all day in the pattern with students and only grab a rag and cleaner to clean the windshield once a day maybe twice if we hit a big bug. This was in south Florida abiut 5 miles from the everglades, bugs out all year
If it accumulated at a rate about 5-10% of what it’s currently doing that would be more realistic