Yes, it would be great if we could teach all the high school kids in our country C, Haskell, or whatever you believe the 'best language' to be.
At the end of the day you should take some time to look into our current state of IT schooling and a different picture will emerge.
IT is in decline across schools. Teachers are badly (or not even) trained in the basics of programming. Switching states currently using Java to Delphi after a 2 day workshop is going to be even more disastrous. There are few teachers that 'remember' pascal from 10 years back.
KZN for example DoE have been trying to train in Java for a while now. They are getting somewhere. Things should be left the way they are. KZN were told DBE did not have the budget for training, they have now shown they have. They should use this budget to train in Java in KZN, and Delphi elsewhere.
DoE in KZN are desperate for Java training, especially in the area of ODBC. They really struggle with connecting to databases and are looking into ridiculous packages for it. The issue here is really training, and 2 days of Delphi training for teachers here is going to kill IT in KZN.