Why does C# disallow readonly local variables?

Question

Having a friendly debate with a co-worker about this. We have some thoughts about this, but wondering what the SO crowd thinks about this?

Answer 1

I was that coworker and it wasn't friendly! (just kidding)

I would not eliminate the feature because it's better to write short methods. It's a bit like saying you shouldn't use threads because they're hard. Give me the knife and let me be responsible for not cutting myself.

Personally, I wanted another "var" type keyword like "inv" (invarient) or "rvar" to avoid clutter. I've been studying F# as of late and find the immutable thing appealing.

Never knew Java had this.