Another of the very few strongly AGAINST people here.
Even though euthanasia seems like the kind thing to do I think there are two reasons for the suffering that some of us will go through at the time of our death.
1. I believe that the suffering of another person makes their carer a stronger/better person, in my case spiritually stronger and it gives you the opportunity to reach out to a person in need (or NoT to if you decide to walk away!)
I have witnessed 2 painful deaths of very, very close family members (one for 19 months and the other 8!) recently and they both taught me so much and have made me into a stronger, deeper person IMO.
2. I believe that the suffering we have here on earth is possibly a preparation for the next world (afterlife). So there is a place for it. Euthanising someone who's terminally ill would take that away.
Besides thinking its the kinder thing to do, is it easier for those who don't believe in an afterlife to feel that euthanising is ok? There is no consequence in a way. I feel it's messing with God's plan. He created us and should be the one who decides when we are to move on.
Btw, don't jump at me for bringing God into this. I can't help but not talk about it as He's relevant to death for me.