Peaceful methods such as fentanyl OD, SN, N, and etc are inaccessible, people also don't want to use brutal methods, SI kicks in when you attempt things like hanging or jumping off a bridge, however, unlike when you ingest something that's fatal, your SI usually won't be going crazy that you'd lose it, those unreliable methods are probably inefficient overdoses, the thing is, people are afraid of brutal methods, and efficient peaceful physically comfortable methods are not accessible/available
People are just trying to die peacefully without resorting to the train method, hanging, jumping off a high building, etc, while they don't have access to things like N and SN and fentanyl, that still won't deter them from trying unreliable methods so long as they're comfortable
And additionally, not every suicidal person has access to things like SaSu and the ppeh
The outcome due to these circumstances is some people attempting unreliable methods.