I get your first statement, however If someone falls off due to poor sight/bad knees/inner ear problems or someone jumps off due to a temporary depressive illness, I see little difference. All relate to medical problems. It's not that I'm rabidly anti suicide - I am pro suicide rights - but I'd hardly call a net coercion. Can you explain this for me?
Grafton Bridge in Auckland has put up Perspex screens for suicide prevention (and the safely of those under the bridge) instead of nets. http://en.m.wikipedia.org/wiki/Grafton_Bridge