User blog comment:EzraPnF/I WISH THERE WAS A 4TH SEASON WHICH WILL BE ABOUT ALL THE KIDS GOING TO SCHOOL!/@comment-106029-20091210161057

Dan and Swampy don't seem to want Phineas and Ferb in school, maybe they'll be a special or something, like the Christmas episode but other then that it will always be summer. The logical reason is how badly it would screw with the formula of the show, Phineas and Ferb are a good few years younger then Candace, meaning they would never interact, thus she would never be able to attempt to bust them. Furthermore, why plan on a fourth season, the third hasn't even started yet. Just enjoy the ride, afterall to quote Doofenshmirtz