Some people would rather live a lie and ignorance is bliss for them rather than being hurt by the truth.
Yet I would prefer a quick yank of the bandage and feel the pain, the blood, sweat and tears that maybe associated to the truth because by knowing it we can make adjustments and move towards moving on and learning from it.
That image you used perfectly sums up the feeling of people.
I agree. If it's gonna hurt, better to face it head on and be healed quicker to move on from accepting it than linger in denial longer :/