>for ten years

Or longer if they show they are unable to reform while in prison.

>penalty for being “noisy” on a train

That is ignoring the second order effects of the situation. This noise is holding back the flywheel of public transportation that could have economic benefits to millions of people. The penalty is for the enormous cost of holding the rest of society back. The person who has such little regard for their fellow man is the one who is letting the few ruin society for the many.