Everything. Like e.g. TOS of public transportation providers only allowing usage for transit (and having some other restrictions). It's loud. It's bright. N

Everything. Like e.g. TOS of public transportation providers only allowing usage for transit (and having some other restrictions). It's loud. It's bright. No showers. No easy way to store food clothes or similar. The risk of being stolen from. Generally there are most times better options even if you don't have much money. And I mean so what if some people try to use it like that it's in practice a combo of inconvenient enough and restricted enough to not be widely abused and in turn to not lead to much cost for the train provider or inconvenience for other passengers to matter much. (Assuming you mean something like looping round and round in some public transportation network.) Also if you mean you take a extra long one direction trip and sleep during that time then there isn't even abuse involved, you just basically used a regional train like a night train. Nothing bad. I mean why not.