Training is overated
as most training courses will teach the student primarily to pass the exam and secondarily the subject. With most course taught in a perfect lab environment where things never go wrong, trouble shooting issues with the subject matter when things do go wrong is rarely touched upon.
IT systems have developed and evolved over the years, there has been no sudden leap where all previously learned skills have become redundant. In my opinion IT professionals should also develop and evolve along with it. I would rather employ a 50 year old with perhaps 30 years IT experience, who maybe a little set in their ways, over a pliable youngster with a list of training course certificates as long as their arm.
I wouldn't call myself an expert in any particular field but with over 20 years experience across a broad range of IT disciplines, there isn't much I cannot turn my hand to and make a passable job of. I also know my limitations so I'm unlikely to bite off more than I can chew.