So if a friend or someone dear to you is really sick and suffering from some incurable illness (

That s a difficult one, I don’t think I could, it would eat away at me. 😞

That's a tough one, because I would want to do a mental assessment first, since many in that situation would not be in the right place mentally to make such a decision... but of course many would argue how do you not expect somebody like that to not be depressed as well or suffer from some other mental illness?
On one hand it's good to think that when you can have nothing else in life, you can at least be given the right to choose your own death, when, where, how, whom you want around. It's an honourable and dignified thing.
On the other hand we could say that there is nothing worse than death and it can never be a "good death" (=euthanasia) under any circumstances.
I've learned palliative care, so I think I would go with that, just doing anything I could so that there would be no pain. I'd ask the person how do they want to be when the time comes before their death. Most likely they'd rather be at home with their loved ones. I'd try to help them achieve that. Chances also are that if somebody comes to that, there is not too much time left for them anyway. So I'd take up all the measures needed, sometimes that means that the person is prescribed many medications for the pain and this causes them to sleep a lot while it can also lead up to apnea. But this is in no way considered assisted suicide or even active euthanasia. It's a natural death.
Some years ago, I'd answer the same thing as you, and maybe my opinion will change over the years again, but for now I'd go with other options like I described.

Unless this is a decision they make when they are lucid and not under duress, it can be too much of an escape when it shouldn't be.
Too many weak-minded ppl will look for an easy way out of a difficult situation. Where do you draw a line?
Must it be a life-threatening? Could it just be a reduction in quality of life? Could it just be inconvenient?

Think of Lt Dan in Forrest Gump movie. He wanted to end his life several times, but ultimately thanked him, w peace in his mind/heart, for saving his life.

After talking about it for a while until I'm convinced this is what they really want, verifying everything is in place to make it as comfortable as possible for them, and assuming I won't risk any criminal charges for it, absolutely! It would even be an honor they want me to be the one to do it.

I would never do an assisted suicide. But I don't believe in being hooked up to machines to stay alive, as that is not living anyway.

I have helped take care of my mother and several other 'end of life' ladies. They all chose to stay home until the end. That was hard as well, but at least it was natural.

I would. Rather than suffer with no hope of the pain going away, if they asked I would help them move on.

I wish that had been an option for my mom. I knew her for 7 years and for more than half that she was in terrible pain.

If that person was me, I would want to be euthanised.
If that was my pet I would have the mercy to set them free.
I do not understand why this mercy is not extended to humans.

Yes, and I would want the same for myself. I in fact have just that deal with my ex. She is my POA for Healthcare, is named in my Living Will and Advanced Directives. We have discussed the whole end of life, pull the plug scenario and have each other's backs 100%.

I couldn't do it

No.

I would, without question.
I would also expect the same in return

*popcorn* i aint touchin the euthanasia Q on SW but ill watch

yeah