I can't provide a direct citation but I worked on image detection shopping for Kakao[1] and can say from personal observation that at least in Korea these features are far more popular (and ridiculously profitable) among women. According to Forbes women drive 70-80% of all consumer purchasing decisions in the US[2] so I can't imagine it's that rare there either, but I could be wrong and this could be an entirely eastern thing but given Huawei is a Chinese company I would bet it's a very popular feature for the phone.