Here's why:

* Wood is an insulator: Wood is made up of organic materials that don't allow electrons to flow freely. Electrons are the tiny particles that carry electrical current.

* Metals are conductors: Materials like copper, aluminum, and silver are good conductors because they have free electrons that can easily move.

While wood can sometimes have a bit of moisture, which could make it slightly conductive, it's still considered a very poor conductor compared to metals.