Field trip day?

This morning on the 16 there were not one, but TWO class field trips using the bus as transportation. The first group looked to be roughly 10 years old, with probably 20-25 kids and several adult chaperones. They took up quite a bit of space despite squishing two little kids into a normal seat. Then we got a second group as we headed south on Stone. Though the group was smaller (maybe 10 kids), the kids were much younger (maybe 4-5) and the bus was quite full by then. Some kind people gave up their seats so the little ones could stay together (I was already standing or I would have done the same). I think both groups were heading to Seattle Center. It was just funny to watch the excitement unfold, though a number of regular bus riders seemed disinterested (and failed to scootch to the back of the bus when the density got higher). It makes you wonder, though - public transportation is a great way to save money for large groups, but I would probably worry about losing a kid or not having enough space on the bus, especially during commuting hours.