People have trouble with moderation because moderation requires the skillful exercise of prudential judgement, and since prudence is a virtue, it means that it

People have trouble with moderation because moderation requires the skillful exercise of prudential judgement, and since prudence is a virtue, it means that it is something learned and acquired. That we can't verify everything personally and therefore must often rely, for practical reasons, on appropriate trust toward authority does not mean we ought to jump out of the pan of irrational skepticism into the fire of uncritical subservience.