In the US life insurance is required to cover suicide, though an initial exclusion period of up to 2 years (depending on state) is permitted.

Wow, I had no idea. For all I know that's true in Canada too, I'm not an expert on Canadian insurance law, but I was under the impression that suicide was never covered anywhere. Thanks for correcting me!

It's not something insurers, healthcare professionals, or most anyone else is keen to advertise. It's even difficult to Google as most of the immediate results will be for mental health crisis resources. But AFAIU as suicide came to be understood as a consequence of mental illness, and given that the beneficiaries are no less innocent than if someone died by accident or cancer, courts began to favor and then insurance regulators began to mandate coverage.