I'm ok with outlawing adults with free wills, getting payed to play russian roulett even if five out of six wont take a bullet to the head. Adults can be exploited too.
"neither harmful", tells me you know nothing about the subject.
Whom gets to decide and determine who is “most vulnerable”?
Also when it comes to the Nordic countries it’s rather hypothetical, considering that they (+Estonia) have one of the highest rates of drug overdose related deaths in the EU. Surely they would have adopted different policies on that already if their goal was protecting the most vulnerable rather than puritanical moralism?
Your examples and appeals to emotion make no sense. Dying from a gunshot wound is de facto harmful to someone. Driving a person to s-u-i-c-i-d-e is not an act of commerce between consenting adults.