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?

Lua is as close to scheme as you can get without macros, and was made from the start to be embedded in C. The end.