It’s not seriously discussed because it’s under-discussed.
I think most people understand the seriousness of cancer, or a heart attack, or other life threatening ailments. They accept that those things are often outside of one’s control, and so there is never any hesitation to take it seriously. When someone in a work setting is diagnosed with something serious, everyone pays attention.
Mental health issues are hard for some people to understand if they haven’t experienced their own challenges. And because it’s not discussed frequently/seriously enough, it’s easy to downplay it or believe that the person struggling can change just by thinking hard enough.
And the people suffering from it don’t feel the same freedom to share those struggles because they’ve also been conditioned by the same collective mindset about mental health and worry what opening up about it will mean for them.
Someone with severe depression who struggles with suicidal ideation has to wonder if people will think less of them, or if they’ll be understand at all. Even though awareness has grown, those old stigmas and default behaviors remain just under the surface.
Someone with a terminal illness will receive an outpouring of support and encouragement.
I’m happy that awareness continues to grow, but there’s a long way to go.