Subway Spotlight: Two Running Ladies!!

A few months ago, I was running a little bit early (a rare occasion indeed) and as i was heading to the train i was passed by two ladies fleeing towards the train exit. I thought to myself, i bet those bitches are late to work. Then today, another rare occasion where i was running the same amount of a little bit early I again am passed by these two same fleeing ladies. My question is this: why don't they just take an earlier train instead of sprinting to work every day?