If your solution is for all of the security guards to become programmers, who will be the security guards? Or perhaps you just want enough poor people to move

If your solution is for all of the security guards to become programmers, who will be the security guards? Or perhaps you just want enough poor people to move away/up until there's high enough demand for low skill jobs that their income increases. Sound Economics 101, but much more nuanced in reality. Update: I was just informed "/s" means sarcasm. Mea culpa.