Those other situations should also be factored into the price they pay for healthcare. That being said, many of those other issues (addiction, obesity, etc.) ar

Those other situations should also be factored into the price they pay for healthcare. That being said, many of those other issues (addiction, obesity, etc.) are much more difficult to "prevent" than getting a vaccine. If there was a vaccination for those issues, then I would put them in exactly the same class.