Not wearing marks does not pose any danger. I have not worn a mask many times, and was not ever in danger from not having a mask. It is a health measure. Unhealthy does not equal dangerous. But I would not classify speeding in a residential zone as clear and present danger either. So maybe you mean something, but are not explaining it well.
Not masking in the face of an epidemic disease is also not a danger. It is merely not invoking another tool to control the spread. In some instances, masking is irrelevant to how the disease spreads. [HIV] In others, masks are insufficient. [marburg]
On the original question, it depends who is doing the forcing. Online posters cannot force any issue. Yet we keep on trying. Governments in the Far East can force a whole lot. In the western world, it’s a bit murky. Generally, the executive branch gets to make the call in times of crisis.