I'm not clear what the problem is. Do you have a study that shows that, for example, 12 years of training over 4 years of training produces a significant result

I'm not clear what the problem is. Do you have a study that shows that, for example, 12 years of training over 4 years of training produces a significant result in mortality rate? Reducing barriers while still producing similar or good-enough output is the nature of all industries. To take the doctor example, say you have the following available to you (price for a single visit): $0 - Google $50 - Cheap Walk-In Clinic $250 - Regular Doctor Checkup/Visit $1000 - Semi-good specialist $9000 - Specialist Which would you go to for a headache? Ear infection? Dull pain in an arm/shoulder for a long length of time? Strange heart symptoms? Tumor? To go back to programming, take the same list $0 - CMS/Drupal/Wordpress/Bighost $1000 - Outsourced $9000 - Local Consultant Which would you use for a personal blog? Friend's bar website? Restaurant chain?