Because most mass transit in the US is awful. For $3 more, I don't have to deal with people using drugs or defecating on the bus in my vicinity. Honestly, this

Because most mass transit in the US is awful. For $3 more, I don't have to deal with people using drugs or defecating on the bus in my vicinity. Honestly, this is a failure on the the public transit cops and administrators for failing to keep stations, trains, and buses clean.