Well, the honest answer to your question is simple, "They aren't business minded and aren't aware about cryptos in general." It is no doubt that most of the girls are the spenders rather than savers and they mostly spend their money on things like cosmetics, jewelry, and clothes rather than on things like cryptos, stocks, or bonds.

But, I am very sure that there might be some girls who are parts of the crypto-world, but again no one really knows about them because they tend to hide their gender and focus on benefits of cryptos.