I guess there are a few issues here when discussing this topic... Firstly, these policies are for EMERGENCIES only. So, what does Emergency mean?
"Emergency means an unforeseen sickness or injury, which requires immediate medical treatment to alleviate existing danger to life or health. An emergency no longer exists, when the medical evidence indicates that you are able to continue the trip or return to your province or territory of ordinary residence (for Visitors to Canada your country or permanent residence). Once such emergency ends, no further benefits are payable in respect of the condition which caused the emergency" - taken from the policy wording of a typical policy
Secondly, exclusions exist for things such as suicide, or attempt thereof, commission of a criminal offense, any medical condition or recognized complication of a condition, where the purpose of your trip is to seek medical treatment, advice, or services, ongoing care, rehabilitation, or check-ups.
If your parents have ongoing chronic conditions such as diabetes, high blood pressure, or elevated cholesterol, they should not travel unless their condition is stable, and bring sufficient medication to last the duration of the trip (or be prepared to pay for those medications themselves). Hope this helps to clarify.
Tracy DesLaurier, CHS
DesLaurier Financial Services
www.dfsinc.ca or
www.travelinsure.ca1-888-933-7462
info @ dfsinc.ca