That is a really good argument for building codes, permitting, and inspections. If somebody bought that property and barn 6 years ago and thought that they were getting a good building, they would be feeling pretty ripped off when they found out that it didn't even last another decade.
Vermont is the most ruled State in the Nation............but little enforcement.
I'm an electrician. I went through the licensing process the hard way. I had no influential connections. As the rules state, I worked summers during high school, but got no credit for that time. I began apprenticeship at 16 after high school graduation. Document 8000 hours, while attending 4 years night school. I then got the honor of taking the Journeyman's test. Another two year wait to take the Master's test. Got my Journeyman's license 1978, Master's 1980.
Vermont doesn't require a license for 1 or 2 family homes. 2 family homes are to be inspected, but few are, mostly they fly under the radar. While all work is required to comply with Code, very little does.
I believe they are even more lax with other trades & the odds of anyone voluntarily complying with building codes are slim. Plenty of builders work their carreers with no knowledge of any codes existing.