Difficult to implement, how do you know if a given person is obese due to soda or to, e.g., genetics? And even if it could be implemented, it's still not the p

Difficult to implement, how do you know if a given person is obese due to soda or to, e.g., genetics? And even if it could be implemented, it's still not the point of universal healthcare. In most European countries we'd rather take care of everyone, even those who are guilty of their own health problems. For example, and even from an egoistic point of view and leaving ethics aside, I'd rather have drug addicts treated and sheltered with my tax money than having to encounter dozens of them, homeless and stinking from bad hygiene, every time I walk the street, as I have seen in many US cities.