I don't know much about technical drawings by hand. But I am very experienced with AutoCAD. And I cannot appreciate much of what CAD has. On the contrary, having met senior people who took technical drawing, they could appreciate it very much so and were able to teach me concepts that I had a hard time understanding before.
Nowadays, when I teach very young people what AutoCAD is, I make them use a mini rolling ruler and tell them to watch youtube videos of how to use a rolling ruler. My understanding of CAD is high enough to know that every tool in CAD was inspired by and modeled after the rolling ruler. Sufficient to say, they understand and enjoy CAD very much after that point.
Nowadays, when I teach very young people what AutoCAD is, I make them use a mini rolling ruler and tell them to watch youtube videos of how to use a rolling ruler. My understanding of CAD is high enough to know that every tool in CAD was inspired by and modeled after the rolling ruler. Sufficient to say, they understand and enjoy CAD very much after that point.