If it can be done without a degree and largely by self study than most of it can be packaged into a course or a book with practice problems and labs that anyone

If it can be done without a degree and largely by self study than most of it can be packaged into a course or a book with practice problems and labs that anyone with dedication can finish can complete and come out competent. Maybe such a course that covers what's needed to get into that top 10% doesn't exist yet but I'm sure it can exist and I would gladly pay for such a course to attain the required mastery rather than explore the space haphazardly myself. Do any professional security experts know of such a course? Are any of you willing to start one?