For most of them, it is because they have no understanding of it, they do not consider it, they do not think it is important, or they just don’t think they will be able to afford it. This article has information on the matter that should keep you to understand various aspects of health insurance coverage.
When thinking about a health insurance policy from your job, keep in mind the overall health issues of everyone in your family. This may lead you to purchase insurance with a cheaper premium if you anticipate no health issues. While it is cheaper off the bat, it could be risky if problems start developing.