Siri & Alexa (and I think Cortana) are She's, so there's that. Maybe it's just like how boats are always referred to as She's. Also reminds me of the NY Subway

Siri & Alexa (and I think Cortana) are She's, so there's that. Maybe it's just like how boats are always referred to as She's. Also reminds me of the NY Subway voices where a female voice was used to convey helpful information while a male voice was used to give instruction. Pretty sure this was all based on user testing/responsiveness.