The definition of dependants differ by insurer, and are as follows for your reference:
nib:
“your children, stepchildren, grandchildren, foster children, and children for whom you are the legal guardian who are travelling with you on the same itinerary for the entire duration of your trip and at the time the Certificate of Insurance is issued are: under 25 years of age, and working less than 30 hours per week.”
SureSave:
“Dependant means your children or grandchildren, or other for whom you are the legally responsible guardian, who are:
– Traveling with you on the majority of your trip; and
– Not in full time employment; and
– Under the age of 25 at the date of policy issue; and
– Named in the Certificate of Insurance