i’ve heard that most people who are stopped in a suicide attempt never try to kill themselves again. that alone seems a good argument for a barrier.

I think the coroner’s report offers too little to invalidate your argument. Good mental health care and the availability of it might reduce the suicide rate. The National Institutes of Health is very keen on cog psych behavior modification therapy, but it’s not clear that the therapy itself has more value than simply giving the patients someone who will listen to them talk about their problems. It does reduce the suicide attempt rate of people who have previously attempted it. There’s no support for it on an epidemiological level. I take the number of health care workers and people under treatment committing suicide as an indication that cog psych behavior modification may be contributing factor.

A better way to deal with suicide might be to actually increase access to mental health care. The money spent installing nets might instead be spent running a free mental health clinic for a few years.