I'll just mention one or two of the biggest challenges for skilled trades. There's the perception that in certain trades there's no regulation, and that any Joe can put his hat on and say it's Joe's Garage, without a licence or any experience. When you don't associate a certain prestige to having that licence or having attained that level of certification, or when the certification is not mandatory—
On February 12th, 2013. See this statement in context.