This is a really important skill that I try to coach any team I am managing on.
Programmers should be rewarded by how well they make their code easy to understand. Tracing is a fantastic tool in making that possible if one knows how to use it effectively.
The trick with tracing is to make sure that:
One separate concerns really well
And the files are small
And that if you yourself can do tracing effectively on the code you are running by tracing on one concern.
For instance - let’s say you are writing a grid infra-structure a good example would be to isolate the heart beat functionality in one file so it can be traced easily.