I see this as part of the same movement that would invade the privacy of women who are pregnant by forcing them into drug rehab programs or even putting them in jail if they don't voluntarily stop taking drugs/drinking alcohol/etc.

Yes, pregnant women are likely to be healthier themselves and to have healthier children if they follow medical advice on a lot of issues, but you cannot force people to care for themselves in certain ways, you can only educate. And create social conditions in which all people, not just women, are more inclined to feel that they have an equal share in the benefits of society - create conditions that promote engagement rather than marginalization.