What's wrong with having nine months of school and three full months of Summer?

I don’t know if it was ever really like this—but school should start the day after Labor Day in the first few days of September, and run until the last Friday in May.

There should be three full months of Summer. where August is the month of buying back-to-school supplies and becoming aware that the Summer is almost over and change is in the air. September becomes the season where Summer lingers makes its exit.

I am not opposed to year-round schools with quarters or trimesters, with three weeks between quarters or four weeks between trimesters. The Summer quarter should be the most relaxed and elective or ‘Bohemian’ and creative. The Autumn or midwinter quarter or trimester the most academic.

I mostly feel it makes no sense to start school in the hottest part of Summer. It seems like it would be better started when the seasons actually start to change, but summer lingers. The last Friday in May is “school’s out for the Summer.”

What works, or worked, best for you? And why does the school year extend beyond nine months?