I came across an interesting quote on experience which made me think about those that disclose how long they’ve worked in a field (myself included of course). The context in which I’m thinking about this is a bit different than the author which was ‘the trades’ and apprenticeship, but, food for thought nonetheless. 
“When the Union Delegates called upon me to insist that none but men who had seven years’ apprenticeship should be employed in the works, I told them that I preferred employing a man who had acquired the requisite mechanical skill in two years rather than another who was so stupid as to require seven years’ teaching. The delegates regarded this statement as preposterous and heretical. In fact, it was high treason. But in the long run we carried our point.”
