If I sell a kid an illegal drug, am I harming the kid?Laws are passed all of the time that recognize that children aren’t capable of making the same decisions as consenting adults.
Hopefully few would argue that passing laws that a grown person having sex with a 10 year old should be enforced. That doesn’t mean that any type of sex between consenting adults should be illegal.
If I sell it to a young adult who I have as much belief will make poor decisions as that kid, am I harming that young adult? If I sell it to a parent who I believe will neglect their kids, am I harming someone?
If you run a retail shop and see that a parent is spending money frivolously and not feeding their kids are you morally obligated to not sell the item to them? There are so many things that parents can spend money on and not take care of their kids that can be argued about anything.
That’s why we as a society have “must report” laws when it comes to kids where people who interact with children must report suspicions of abuse.
If I sell chemicals that will cause birth defects, but the other party agrees to them (in the 2pt font fine print), am I causing a level of harm they did not consent to?
Again that comes under the same concept of the difference between laws that carve out protections for children.
Also cigarettes are harmful, but we as a society has decided that informed consent in big letters is enough and let adults make their own decisions. It’s also completely legal even under the ACA to charge more for insurance for smokers.