Methodological Skepticism

While I would love to think that the majority of people go through their lives doubting everything they can until they have proven beliefs and belief systems to be true and worthy of belief I think that many people actually do the opposite and are quick to believe right off the bat. That being said, I do think that the world would function very differently if people were to utilize methodological skepticism in their daily lives.

Our legal system in the United States theoretically follows this process. Innocent until proven guilty could be construed as methodological skepticism. Doubt is used in a case to arrive at certainty of a person's innocence or guilt. Were we not to use this system and believe immediately that someone was guilty because of heresay or sense experience (example: someone only thinks they saw someone steal a car) our legal system would be extraordinarily different.

In terms of incorporating doubt and healthy questioning in everyday life, it could even be thought that certain segments of advertising thrive on the fact that people are quick to believe claims, images, presentations of realities. Were people to take a step back and employ a healthy dose of methodological skepticism in general, would marketing and advertising suffer? If people wondered why they were so quick to believe, let's say, that the perfect life is one like the fantasy presented even in sitcoms or in romance films, would the media industry fall? I suppose one could say that people could enjoy the deception and illusion but do they know they are being deceived in the first place if they have never doubted or skeptically gone over their beliefs?