[smt88]

> If they can't kill themselves on a train, they'll just go to the nearest bridge.

This is a quibble in this context, but it's an important issue in others (such as access to guns):

Suicide is an impulsive act. The less "convenient" it is to kill oneself, the fewer suicides there are. A extra few minutes to reconsider can often be lifesaving.

This is well-researched (and still fun) podcast where I learned about this: https://gimletmedia.com/episode/guns/