you need insurance because it is a requirment to apply for Supervisa for parents (if you are referring to that one) and you might already know that these travel medical insurance plans dont cover "pre-existing medical conditions" to an extent that lets say a person had high blood pressure and diabities and the individual got a heart attack while being in Canada, guess what ....claim denied ....wonder why ...... because the precipitants (contributing factors) leading to the heart attack were pre-existing ....... and you are a loner in your sinking boat ..........
, all these websites only give you fake quotes to attract you to call them, once you call them they look at your age and other medical conditions and give you an insane quote or lets say that these online quotes DO NOT represent the underwriting policies of insurer and are only a cheap marketing scam for which they pay to insurance quotes portals like Kenetics and that that ...... hope it helps