The standard xkcd on making another thing:

https://xkcd.com/927

On frameworks specifically, I recommend the song:

We’re gonna build a framework,
cause we wanna use one,
but don’t wanna choose one

We’re gonna build a framework
We didn’t like the others,
So we’ll write another

I never understood why they don’t add just a little syntactic sugar. You don’t need much to take it from a mess of brackets to something comprehensible.

It was in the original design, but not the first implementation. By the time someone got around to it, people where used to S-expressions.

I can’t comment whether learning C first improves your rust, but it certainly makes you appreciate what the rust compiler does.
Also learning rust improved my C.