Embedded Scheme

Why the fuck did bash/vim have to make up their own languages instead of using a pre-existing one, like, say, Scheme? No, I have to waste time learning your toy language's syntax. Seriously, if Scheme was designed to be simple and elegant, why isn't it used more often as an embedded scripting language?

>>1
I think sh predates scheme, and bash would have copied that. Vim is retarded, but allows you to use multiple languages anyway.
Guile was supposed to be the scripting language of GNU/Linux, but we all know how that's turned out Well, I'm guessing at least one person doesn't, GNOME turned to python because that's what people think qualifies as a good scripting language.
Scheme wasn't designed to be simple and elegant (originally), it was an accident caused by realising that functions and actors were equivalent.
It does get used as an embedded scripting language, notably by Square, but it doesn't get used more often because lol parentheses.

Did I miss anything?