There are several reasons why adult children may no longer be eligible for cover under a family health insurance policy. The reasons can vary dependent upon the insurer and the policy itself. Each insurer has their own detailed explanation as to how they define dependants under a family health insurance policy. We have listed some of the criteria that applies for children from four of the biggest health insurance providers: AVIVA Under an individual Healthier Solutions family health insurance policy, they are covered by the policy if they live at home, with no upper age limit. Dependants under a group…