Frankly this seems paternalistic. It's hard for me to read this and not translate it as: "We found something non-white people enjoy and we're going to ruin it. For their own good."
New Zealand has an age requirement for tobacco, and has also (edit: proposed) to ban sales of it entirely based on birth year (2004 and forward) to phase out its consumption. I’d say this doesn’t go far enough. We’ve known for over half a century the damage tobacco consumption does to a person’s body. https://www.theguardian.com/world/2021/apr/16/new-zealand-ai...
Sorta. We don’t have any randomized trials in people. Even harder to blind the participants for extra science.
We have tons of epidemiological evidence that it’s bad, but that’s piled with pesky cofounders.
Being the type of person that could become/does become dependent on tobacco does terrible things.
Being the type of person that can shake off that addiction does great things.