>>23384717
Too expensive, impractical, specialized for combat only and for specific combat situations. Let us say you want to man a checkpoint. B1s can do this, probably for a significant period of time without being serviced, and they can be swapped out with multiple other units. If any are damaged, they are cheaply replaced, if they need to move, they will always be just as open to attack or not regardless of anything. With humanoid forms, they can man any machine humanoids can operate, hence they can use vehicles, tools, etc. as well as actually have dialogue with organics, which is something of a necessity for policing them. Above all, B1s are cheap and easily mass-produced; any losses can be swiftly replaced at little cost.
Droidekas need to shift between rolling and walking movement to get anywhere, which is a significant weakness. They are not humanoid and have no manipulators, so they cannot use tools, operate machines (without them being specifically modified to interface with them or vice versa), and I don't think they are capable of vocalizing at all. If they do not have their shields they are vulnerable, and even with those they are susceptible to heavy weapons, as well as notably less mobile. Overall they are obviously more costly than B1s and likely cannot be produced as quickly or cheaply. To build a Droideka army would require significant reworks and variants on the design to make them more friendly to mass production and broader use cases.
>>23385294
It's the former. This thread is a direct offshoot of a series of twitter posts about the leftmost battle droid in this image.
