[qwery]

> why would you want to?

It seems like you know C++ pretty well, so I think you could probably come up with some reasons if you gave it a try.

The obvious thing that comes to my mind is because you can't rely on an undesirable, unknown, or potentially nonexistent implementation of the STL for your target platform.

As for cookies: who am I to dictate what/how someone should bake?