[Hodar]

Thus, it boils down to the fear of the “What if” as a justification for upsurping another’s rights.

Can you provide any sources where this has happened?

[Aunt Polgara]

Thus, it boils down to the fear of the “What if” as a justification for upsurping another’s rights.

Cute, Hodar. You assume that you have a right to have someone else kill you, and then you accuse me of wanting to usurp those "rights".

There are many sources on the Internet of the abuses that are taking place where euthanasia is common. Here's one from the UK:

Now the Dutch Turn Against Legalised Mercy Killing

And here's another:

Fearful Elderly People Carry 'Anti-Euthanasia' Cards

And here's one from the Atlantic magazine:

Whose Right to Die?

Here's an interesting quote from the Atlantic article:

The Netherlands studies fail to demonstrate that permitting physician-assisted suicide and euthanasia will not lead to the nonvoluntary euthanasia of children, the demented, the mentally ill, the old, and others. Indeed, the persistence of abuse and the violation of safeguards, despite publicity and condemnation, suggest that the feared consequences of legalization are exactly its inherent consequences.