One counter point, which is the defining feature of tech imho, is you don't need to be born into it. Its difficult to become a doctor without prepping years or more ahead of even applying. You can break into tech at basically any point in your life, it just takes time (as you said) and effort. And of course, interest will make it more enjoyable / tolerable. Its not a perfectly egalitarian club, but it is certainly _more_ so than any of those other professions, by a few orders of magnitude.