I am not using "lazy" as a derogatory term here, nor am I trying to imply that no effort is necessary. I just want to draw attention to the notion that cad makes it easy to gain a skill that will pay you handsomely. You get a lot of bang for your buck with cad. A Cad designer can be as effective as a team of engineers becasuse cad software performs many routine calculations that use to take engineers a long time to produce.
Learning cad can be a challenge but the return on your invested time is more than worth it considering you can make as much as someone that put in years to gain an engineering or achitecture degree. Cad is by nature meant to do the work for you. You must know what you want from cad, that is where your effort lies, but once you know how, it is virtualy effortless. Cad is used in many industries and is equally automated in each of them. So if you don't know exactly what you want to do for a career or your current career is not as rewarding as you would like, try cad out you'll quickly see that you don't have to work so hard to make a buck.