After I posted this message, I went to verify some resources and found an article saying that 50% of millennials now consider gender to be spectrum - and using a picture of a man or woman could be considered offensive. We're not getting into that discussion
The article went on to talk about using gender neutral, or one of each, or a cartoon as being a better route. They suggested a dog, but then also said you can alienate cat owners. People are so fickle
So, to cover my bases; marketing is always changing depending on demographics (age, location & gender).