Depending on what your working on, it's actually super nice to know very clearly what lives on the stack vs the heap for performance and compactness reasons. Basically anything that didn't come from malloc or a function calling malloc lives on the stack and doesn't live past the function it was allocated in.
And these days, if you're bothering with C you probably care about these things. Accidentally promoting from the stack to the heap would be annoying.
And these days, if you're bothering with C you probably care about these things. Accidentally promoting from the stack to the heap would be annoying.