My kids ride the bus, I HATE HATE HATE driving them in if I don't have to. They've been late pretty much every time I do because by the time they came home from the bus stop after missing it, we simply could not make it from point A to point B before the cutoff time. Last time, I tried getting them to go to the school from the back of the parking lot, only to have them escorted back saying they couldnt' do that without a parent (and they were at the front of the school at the time). The traffic is what takes so much time, I can get to the road the school is on with plenty of time but then we sit there waiting on the turn light and for the traffic in the school lot to allow us to turn in, then sit and wait for cars to unload and the traffic guy to let cars in and out (since they've re-routed the parking lot so that cars going both directions are using the same one-way strip of road)

ETA I forgot to mention that when I turn onto the road the school is on I'm usually sitting at the very end of it, and have to wait until those ahead of me either get into the tiny turn lane to go into the school or manage to get by those waiting to continue on that road.. I end up pulling as close to the yellow line as possible so I'm not blocking more people from getting by.