No no, I did about six months of construction work out of high school, got my shit together and now I make a good wage. It might be harder for some people than others, but it's still possible.
See, this is exactly what I'm talking about. It is not that hard to go from yards to inches. Hell, even converting between metric and standard isn't hard. Hell, the software you use most likely does it for you. And you are so aggressive about it, it's ridiculous. "Oh woe is me, I have to divide by 12 instead of 10! I need to kick someone in the balls because god forbid I divide by 36. "