Because the C family is guided by a committee. Even worse, an important and respected committee.
Unlike C++, C also remained a simple language (which is definitely a side effect of the "conservatism" of the C committee).
The mental overload of some small things added every 10th year and in use 20 years later is how I like it.
If you crave excitement, there's Rust and Go. (And I say that in the vein of "may you live in exciting times". ;D)
Oh, and there's D if you want to immersively roleplay like you're in an alternate timeline, like Infinite Jest or something.
Hey, pass me more OOKoolaid.
No, it's fine; all the bottles say "Expires 2005", but it's still good.