trains

That doesn't help because the connections are planned to be meeting this train at the planned time. They plan the trains so that you can move from one to the next to reach your destination. And they know who is on which train and sometimes they'll delay a connected train to get everyone aboard. But that's rare and you can't plan for shit like that. And if your plan is to count it as a 6:30 train, your 45 minute commute turns into a 2h+ commute. At that point, I'd buy a car.