Ok, I see your point. But perhaps one can learn Computer Science much more efficiently after already knowing how to program? It doesn't seem likely that you'll be very open to learning data structure design and asymptotic complexity when you're still wrestling with for loop syntax, the difference between assignment and reference, what the hell recursion is, etc. You have to learn to walk before you can learn to run, and while jumping in the deep end may work for some, I'd guess most would find a more programmer-friendly introductory language a quicker path to comprehending basic CS concepts and would subsequently be in a much stronger position to tackle C.