A NY Times article features a woman who bought some consumer electronice items only after the manufacturers
dumbed them down for women made them easier to use:
In short, Ms. Duarte fell for high-tech gadgets. Her basic feelings about consumer technology did not change. What changed was the design of the products. They were easy to use and that appealed to her.
“Women are busier than men,” she said. “I don’t love technology enough to sit down and spend two hours with a manual like it’s some great puzzle. Men get great gratification out of that. I’d rather read a book.”
So that's an interesting explanation, that women are too busy to learn how to use a digital camera. What are they too busy doing? Shopping for clothes?
With so many stay at home moms, and they being one of the primary target markets for digital cameras because they like to take pictures of their children, I don't see why they don't have two hours to learn how to use a digital camera.
The more likely explanation, which is not mentioned in the article, is that the innate aptitude for learning how to use digital cameras and other types of electronics is, on average*, higher in men than it is in women.
*On average means don't refute this by giving me anecdotal stories about individual women who are especially good at learning how to use electronics.