C-train Etiquette

I always take a c-train to go to U of C in the morning. I think people need to follow c-train etiquette. Fist, you don't put your feet up on the seats because the seats keep cleaning. Also, you offer senior citizens and pregnant woman, you keep your bag on lap, the c-train puts a ban on smoking. There are many etiquette.

I think I need these rule enforced because there are people who don't keep the rules. For example, I sometimes feel bad in the train because the seats are dirty or who is eating food in the train.