And in many cases, there is SIMPLY NOT enough detail!
carpentry box
One of the designs I saw was for a modern wardrobe, but the details of how to put it together were terrible.
You need to start guessing where to attach carriage bolts, etc.
Another was that the upper back is not straight, as it has a design that was not explained.
So I took a paper model, drew it, and traced it on boards as best I could for one of my students.
These so-called "step-by-step" plans make woodworking EASIER than it really is