You pointed at the right reference, but IMO you interpreted it wrongly. Here is the full quote:1. US law/regulations are, IMHO, a bit more strict. The USA requires that its citizens, including dual citizens, use a US passport to enter/leave. Canada is a bit less strict in only recommending the use of a Canadian passport.
It is my understanding that the CBSA recommends Canadians to have Canadian passport because it is the only universally accepted travel and identification document compared to other limited-validity documents such as NEXUS card or enhanced driving licence which may not be valid for entering Canada by air. I really did not get any impression that the CBSA even hinted at the dual citizen scenario in this entire section. I think the main point that the CBSA was trying to convey is to have a passport without the explicit emphasis that it should be Canadian passport because it is assumed by default that Canadians will travel with Canadian passport. I hope I did not confuse you with my long-winded explanationCanadians Returning Home
Make sure you carry proper identification for yourself and any children travelling with you to assist in confirming your legal right to enter Canada.
The Government of Canada recommends that Canadian citizens travel with a valid Canadian passport because it is the only reliable and universally accepted travel and identification document available to Canadians for the purpose of international travel.
International transportation companies such as airlines may require travellers to present a passport. Therefore, Canadian citizens may face delays or may not be allowed to board the plane or other conveyance if they present other documents such as those noted below.
- Enhanced Driver's License (EDL)/Enhanced Identification Card (EIC)
- NEXUS card (used where the program is available)
- Free and Secure Trade (FAST) card used in FAST lanes
- Canadian citizenship card
- Certificate of Indian Status
- Birth certificate in combination with either a driver's licence or a government-issued photo identification