Bombpclaaaaaaat

It's a bit more complicated than this, although parts of what you say are on the right track. Most people who start doing heroin don't do it as their first opioid. Most heroin users came off of prescription drug addiction and abuse, then get on heroin when the tolerances get higher, the same amount of opioid doesn't deliver the desired effect, and the addiction becomes more expensive, so addicted people are driven to the cheaper and more dangerous alternatives like heroin and substances potentiated with fentanyl.

Some people get on prescription drugs because they were "pain-seeking" as doctors call them. They were out to get pills from someone who is lax at prescribing and wants the money. Try a bunch of doctors till you get something. That's been tamped down quite a bit but still exists despite state databases on controlled substances. The other piece is people selling pills in the secondary market off of their prescription. This is also abuse obviously.

Other people are prescribed an opioid and just get hooked of no fault of their own other than taking a licensed physician's advice. Major surgeries, car accidents, it happens all the time. Rich people and poor people. People of all races. They get prescribed the hard stuff because they're in a world of pain and develop a chemical dependency that's out of their control. Opioids are really dangerous substances even when used and prescribed properly.

Learning more about the circumstances which lead people to opioids and heroin gives you a lot of empathy for them. A lot of people started out no different from either of us, and there but for the grace of God, there go we.

Source: experience living in cultures disproportionately impacted by opioids. I've seen prescription use and abuse, people addicted of no real fault of their own, opioid induced constipation and being put on a colostomy bag and dying. Communities gutted. People impoverished. Clinics which sold people anything to make a quick dime.