I guess what I was getting at is off topic, but the overarching theme of drug policy is to blame inanimate chemicals for people ab/using them, rather than looking at why people choose to (ie. poverty, isolation, lack of opportunities, discrimination etc) and trying to resolve those social issues.
whether or not you become long-term addicted is dependent on your usage patterns and your natural predisposition.
drugs like opioids are not typically 'social' drugs; they don't so much enhance an experience as they offer an escape. it's my belief that people who actively seek this sort of escapism on a regular basis do so not because they enjoy the escapism, but because they don't enjoy the alternative.
people who are happy with their lives and social situations do not tend to seek drugs that isolate them from it, and the people who aren't need to inspect their underlying motivations, not simply blame the drug for being addictive as the media and much of society is wont to do.
so, I'd say whether or not you'd get addicted to heroin depends on how you feel about your life without it
amusingly enough, jean-marie le pen was just fined for stating that 'gas chambers' were one of many details of WWII, not the core or most important factor.
if you're going to be using helium anyway, why not blow up a few hundred (thousand? I dunno) balloons and bind them to a noose? it'll be the most festive hanging ever, and your body will fall from a great height at a random location a day or so later