Don't get me started on suicide. How can that be illegal? It is nobody's business but the chap who wants to carry it out. The government has no business mandating that the lives of its citizens are to be preserved even against the wishes of the citizen in question.
Wnat are you going on about? Suicide, and attempted suicide, is legal in Australia.
Moreover, since when was getting rescued compulsory? If I wanted to go for a swim in a swollen river on a sex doll - or doing like that American chap did fifteen years ago and go bush out in the desert for 40 days - mark my words 'getting rescued' and thrown back into the awful society that I had just managed to escape from would be a fate worse than death.
If they want to go for a swim in a swollen river and not be rescued - let them buy their own swollen river to drown in instead of their bodies polluting a river that is owned by the people, or for their body to end up on the property of some farmer or other property owner.