No one can predict the future. But here’s some data we can look at.

In the US currently, you cannot be barred from buying health insurance even if you are an active smoker. And we’ve known about the dangers of smoking for a long time.

So even for these people that are actively harming themselves, we have a law that says they can do this. Now think about how far things have to move before we say “you can’t buy health insurance if you eat too much”.