Starting Schools Later

Have you ever wondered why schools start so early? I have, and starting school early at 7.30 a.m. can be really tiring. The reason why schools start early is because that normally, schools have a morning session and an afternoon session. But, with only the P1s and the P2s, why can't the P3s and P4s join them in the afternoon? This, would then allow only two levels to wake up early, thus sparing more pupils from lack of sleep. But of course, there is another way, by starting the morning session later, at 9 a.m. This way, the pupils will have enough sleep and the bus drivers can still ferry the factory workers to their destinations. Then, instead of having recess, there'll be lunch at about 12 noon to 1 p.m. And possibly, school will end at aout 2.30 p.m. or 3 p.m.
And that concludes on my say to start school later. Hopefully, this will also happen with secondary schools, if this does happen, that is.