This was going to be my non-schtick answer.
I've even contemplated it a few times over the past 5-10 years, but can't take the first 3 year hit to the finances with a wife, 2 kids, mortgage, cars, etc. I know I could ultimately earn more revenue being an electrician over the next 10 years and end up being my own boss at the end, but the debt I would incur just maintaining our current lifestyle (plus the physical wear and tear on my 44 yr old body) would put me so far behind and is too much risk to take.
If I had known what I know now about the construction industry 20 years ago when I was in my mid-20's without kids, I would have made the jump and be in tremendous financial shape by now with much more flexibility and control over my schedule/life.