Because I live somewhere with socialised medicine
So yes, the smokers, the fatties, the idiots on bicycles who don't wear helmets have an impact on everyone else, because it's not an infinite pool, and so everyone who is a burden because of their behaviour has an impact on everyone else
Tattoos don't cost the health system. Even the person climbing a tree who falls out and breaks their arm has no impact
Fatties do. Smokers do.