1st Day of School

It's the 1st day of the 2nd grade for Cooper......he was excited, me on the other hand - excited for him yet, not so much!! We had to bring the princess to grandma's house this morning before the bus, so I could get Coops on the bus and go to work. The bus schedule said his pick-up time was 8:07am, so the schedule in my head went something like this:
leave the house and bring Izzy to grandma's at 7:40am
get home by 8am to have a few minutes to take photos
to the bus stop (next door) by 8:05am
get Cooper on the bus without him seeing me cry

Well, the bus showed up at 8am, we did not take any photos, and Cooper had to run next door to get on the bus. I got a quick hug - a quick "love you mom", and he was off. In the grand scheme of things - probably for the best. However, for some reason I am extremely teary today, and the mention of school could at any minute send me into an hysterical, emotional moment. Do you think it would be bad to go to his school and peek into the classroom windows? Really, I just need to know that he is actually at school and safe. Not that he would already ditch class in the 2nd grade, but just knowing he is safe and sound. 4pm cannot come fast enough. How do parents ever let their children go off to college? My children apparently cannot go.......they give online courses now right?