Where are all the male AI voice assistants?

If you were to ask your device with an AI voice assistant a random question, what gender would respond to you? Female most likely, and that's because only female artificial intelligence assistants have been developed. Microsoft's Cortana, Amazon's Alexa, and Google's Assistant all have female voices. Apple's Siri also started as female only, but added a male voice option three years ago, even though the female voice is still the default. It might be easy to think that female AI voices have been the go-to because of sexism -- lots of men in leadership and developer roles at Silicon Valley -- and that may be at play, but there's more to it. Two studies recently cited by The Wall Street Journal show that men and women prefer a female voice assistant because they believe it's more welcoming and understanding.