[Nursie]

The exietence of C makes perfect sense thanks, it's a relatively small and simple language with masses of flexibility.

C++ adds masses of complexity and implicit behaviour. While development in C++ can be quicker and might be 'safer' it can also produce all sorts of unexpected problems.

It also encourages all sorts of nested template types that can make existing codebases incredibly hard to read.

Further, in embedded situations, you may not have space for its standard library.

[pjmlp]

Even without the standard library, C++ offers lots of safety mechanisms over bare bones C.

[Nursie]

And a lot of complexity, obfuscation and implicit behaviour.

I have developed and enjoyed developing in both. C has an elegant simplicity about it and you can do literally anything. C++ can be quicker, and it has a bunch of useful standard stuff, but it does have some downsides and quirks. There's room in the world for both.

[pjmlp]

I never enjoyed C as such, always felt too little when compared with Turbo Pascal, only used it in anger for university projects and my first job.

For anything else where the option was between C and C++, I always picked C++ when given liberty of choice.