It would start with heads of state and rich people with enemies. But I expect all of us will be surrounded by swarms of friendly robots some day, both to help

It would start with heads of state and rich people with enemies. But I expect all of us will be surrounded by swarms of friendly robots some day, both to help us with tasks and for security (some kind of artificial immune system?). As usual with war tech, the research will eventually find its way to consumer products.