Not only does Canada have that now, they teach it to young children in school. They call the liquids used to put a human to sleep, Medicine.
By 18, anyone can be euthanized.
A lady friend of mine, her Aunt went to Sweden to have it done. Then last year the same friend had an uncle that did it.
I'm not a fan, but there comes a point where it's probably better to die if the pain is endlessly excruciating. We do that for pets and call it humain, but not people.
I don't think it should be taught in schools to young children either.