Well, as Peterson describes, facing reality is "truly horrible and terrifying." Facing the unknown is scary. Change can be very hard.
After I got my graduate degree in psychology, I worked for four years in an inpatient psychiatric hospital. And one of the truly tragic things I observed is how, after discharge, people would return to dysfunctional situations. Addicts would return to their friend group who used drugs. Abuse victims would return to their abusers. All this led me to a fundamental psychological insight: "The brain craves predictability more than happiness."
Adaptively speaking, the brain doesn't care if you're happy and fulfilled. The brain's number one job, forged in the fires of Darwinian evolution, is to keep you alerted to threats, keeping you alive. And key to that success is living in an environment that is known and predictable. And so, upon discharge, my patients would return to the known, even if the known was unhappiness. We'll choose the unhappiness we know over the possibility of joy. The brain defaults to the predictable.
Peterson commenting on this,
We also reject the unknown by clinging too closely to habit and social conventions. We stick too close to the group, fearing we'll stand out as distinctive individuals. For example, I find it baffling how the younger generation, who claim to prize individuality and authenticity, willingly become "followers" of social media "influencers." I mean, if you prize being an individual so much why are you always following, following, following? Rebels aren't followers. And why in the world would you follow anyone called an "influencer"? Wouldn't a true individual resist being influenced?We have been granted the capacity for constant transcendence, as an antidote, but frequently reject that capacity, because using it means voluntarily exposing ourselves to the unknown. We run away because we are afraid of the unknown...
The individual who fails to modify his habits and presumptions as a consequence of change is deluding himself--is denying the world--is trying to replace reality itself with his own feeble wish. By pretending things are other than they are, he undermines his own stability, destabilizes his future, and transforms the past from shelter to prison.The individual embodiment of collective past wisdom is turned into the personification of inflexible stupidity by means of the lie. The lie is straightforward, voluntary rejection of what is currently known to be true. Nobody knows what is finally true, by definition, but honest people make the best possible use of their experience. The moral theories of the truthful, however incomplete from some hypothetical transcendent perspective, account for what they have seen and for who they are, insofar as that has been determined in the course of diligent effort.