Just in case you missed the point of what I was saying: I don’t think we should have a baby killing machine. The maker of a tool has a responsibility to take at least reasonable precautions to ensure their tool is used safely. In the case of an autonomous lawnmower, they typically have a lot of sensors to avoid stuff, are shaped so they can’t easily run over things they’re not supposed to, and in many cases have blades on pivots that while they could hurt someone are able to do significantly less damage.

Being “just a tool” doesn’t exempt something from being critically judged because it could be an unsafe tool by an irresponsible maker. The tool maker has a responsibility to make their tool safely and properly, and if they can’t they need to not make the tool.