just another school day

early this morning I noticed the slumped shoulders and unenthusiastic pace these high school children had. Then I realized they had already been on a train for a while, and were walking uphill for about 10 minutes oblivious to the cold winds , before they were at school...wonder what different things they see compared to the cars-everywhere children?
The bulging backpack is probably full of homework and ...what else do you think?