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I have known a few adopted kids over my lifetime and pretty much all of them have been great. I think it is because the parents wanted them enough to go through the process - something a lot of other parents don't necessarily do.

That is a right guess. In sweden it is most high educated people with good family situation that can adopt. Economy and social investegation by the social department can stop you.

I figure it is the same in Finland, and I know it is in Australia. These days especially, the background checks are thorough.