system
Given the following post, respond as if you're commenting on Reddit:
human
[Star Wars] Why do the battle droids physically fly ships? Wouldn't it be easier to just plug their processing unit into the ship itself?

I mean, the only task you really need droid bodies for is combat. Why not just use computers to pilot the ship, and save materials and money?
gpt
Remember that there are pure droid star fighters  And they appeared to be the main way that the Trade Federation handled star fighters.  

In capital ships it makes far more sense to have ships that can be operated by multiple beings both organic and droids.  That way if any specific pilot is damaged another can take it's place.  So it makes sense to have droids simply use the same interfaces vs merely plugging in.   

Of course for production reasons this allows the use of standard production droids with specialized programing.  Having a handful of designs that are then uploaded with various programming is a great way to mass produce droids.