Most people who “doubt” – it’s often not a question of belief in actuality. It is more a question of backbone and self-discipline being hidden by fronts of doubting belief. Doubting requires no action of you, just a smart-alecky, haughty veneer that says, “I’m just too intelligent to believe” and lets the doubter do any action or deed desired. No boundaries when you doubt. No obligations. I doubt doubter doubt. I’m quite convinced they find it convenient to doubt.
Intellectual honesty means plumbing our own attitudes and seeing how much of our “beliefs” are mere laziness.