The only argument I hear against it is that their families could pressure them into it so they can cut down on medical costs or speed up their inheritance. I don't get why a few rounds of 1 on 1 sessions with doctors and other professionals couldn't weed out the ones being taken advantage of. I suppose they could lie to the doctors, but that's still a rational choice the person is making and not wanting to leave your family with thousands of dollars of debt just to last a few more weeks or months is a perfectly valid reason to want to end your life imo.
The UK has the National Health Service. I don't know about you, but I have absolutely no faith in Government bureaucracies.
I understand both sides of the argument, on this one... and I can't help but consider the potential consequences when a citizens' views no longer are "politically expedient" for whichever party is currently in power. If you think society has somehow moved past such barbarity, there are a few million Americans who would happily spout out their opinions on their current FBI for hours. It seems that's all some do, on twitter and elsewhere.
Of course, in the UK, you have "subjects"... not "citizens". No right to bear arms, little control over body autonomy at all when you consider the recent covid fiasco. Not nearly as harsh as Australia, from what I understand... but still quite ugly. This is a sticky argument.
I can't help but admire the fact that the man was intimately familiar with life and death in ways that few are, and chose to make his end a monument for what he believed. Despite the pain. Despite the inconvenience.
He knew how to check out fast, had he wanted to.
He left his family with a legacy they could use to move society, anyway. That takes heart.
Bureaucrats like to take peoples' liberties and run with them.