I would suggest that the very real, pre-existing option that you relate would be virtually unthinkable to the Socialist mindset, who demand that all needs, from cradle to grave, be either provided by the Government or enthusiastically supported by the Government and Law. When it is problematic for the Government to automatically and without a word provide a 'service', The Socialist wants to be able to pick up a Government-printed and distributed Official Telephone Book, lift the receiver that connects to a Government-run telephone exchange and contact a Government-approved entity to provide the 'service'.
Going to rural Mexico and drinking the naturally-lethal water or travelling in an area where you will likely be beset by banditos / 'police' would require original thought that is outside the realm of Government Control, and it seems that many Europeans are absolutely delighted to pay many times what the cost of a plane ride to Mexico would run, in order to have it done in a Government-approved manner that has a facade of Government Approved medical science attached to it.
The country was incredibly beautiful, but the vibe was dark dangerous and foreboding. I am glad that we got out of there without harm to ourselves or another.
While I agree on the onerous and herd-like nature of collectivists, I do not propose going to rural Mexico with the intention of really doing oneself in, just the acceptance of “passing away”, howsoever it happens, in spiritual peace and in a mood of acceptance, quietude and some degree of friendship.
Many people in rural Mexico live to a ripe old age. And I might add, the water is probably better than in the cities, even if it is still advisable to boil it or drink bottled, and to be careful in washing your fresh fruits and vegetables. You can have painful dysentery a long time before it kills you, otherwise.
Unfortunately, when old or ill and infirm, it is far too easy to fall prey to the fears of the young and healthy who either incorrectly assume that your life is agony, and want to “do you a favor by putting you out of your misery”, or even worse, to do everything they can to prevent you from dying, because they see their own death in yours, and are terrified. That is, reveling in their own self-pity, so trying to unnaturally extend your life.
In between the two is locking you away in a hideous cell with others who are also old and infirm, so they don’t have to look at you. Which is less like Limbo, and more like Purgatory. I don’t advise visiting such places, abattoirs of the spirit, where people are put so that their minds and bodies may rot away without their families having to watch. They are grotesque.
The rural Mexico option has to be long and carefully planned, not just a spur of the minute decision. One’s children and other relatives need to understand and agree with the decision, enough at least to stay out of the way. And you must travel when you are still strong enough to travel, not sapped of strength and will.
You also cannot assume that death will cooperate, either, as it seldom does. You might die your first night or live for years. So you have to assume that you are going to rural Mexico to live, not just to die.