Of what real concern is technical debt to someone who is debating studying CS though? Especially when you say that they don't know what they don't know, thus no

Of what real concern is technical debt to someone who is debating studying CS though? Especially when you say that they don't know what they don't know, thus not even realizing what debt is potentially created. Worst case is that they create too much and leave for greener pastures when the weight becomes too burdensome, which is really not that big of a deal to the individual. But you seem to be looking at this from the owner/employer point of view, which I am not sure represents the type of person who would be studying CS in the typical case anyway. At least once you get past the early startup phase, if the business even started in software, these people tend to disengage from the day-to-day development to focus on the business. In that respect, if technical debt is a real concern to them, they would provide more formalized coverage of these topics to all employees to ensure that everyone understands B-trees, or what have you, at the level the business deems necessary. Since that is not common, it may not really be the operating concern you make it out to be either.