Why can't we use C language to implement AI programs?

C language is middle level language , it has very few libraries for high level Tasks/Applications. like GUI,Gaming.

C is mostly used when hardware related stuffs required like device driver, firmware.

AI needs multitasking , high level algorithms supports and matrix manipulation , so C PL can’t provides ease of do that, if you try to do so your program gets very big as well as clumsy . So better you use C++/Python which has already well developed libraries that provides API for developing your high end application.

Let’s take example of image processing’ kernel , if you trying to implement in C PL you need to do lot’s of task related to matrix manipulation, but if you use Python PL you have direct API to do so like OpenCV provides you this facility.

There are lot’s of such libraries like NumPy. SciPy, OpenCV which provides you well defined APIs to do your task very easily.