Bitcoin was created not only for men, but the creation of bitcoin is definitely for all mankind in this world, who are capable of buying or investing. Because until now I have never heard of and found no news containing the prohibition of buying bitcoins for women. So if there are women who are as interested in bitcoin as your sister, they are women who are very smart and have good minds. But women who invest in bitcoin are still very few. Because if I look at the women around where I live, almost 95% don't know about bitcoin, and 5% of women who know also seem less interested in bitcoin.
maybe in the country where I live it won't be much different either, you could say it's still a minority.
Maybe because of that, what makes a woman who invests in bitcoin is still considered foreign and not prominent.
Yes, because it is only a currency and even our local currencies like the dollar were also used by all genders but there might only be certain ages who can't use Bitcoin. That is if the person is too young or if they are too old. They may not understand how to operate it. This is one of the downside of Bitcoin.
We only have the impression that more men are using Bitcoin because we think it's hard to learn and then it is risky. Last time, there are news that more women are now engaging in Bitcoin and the blockchain tech. That's good for them. It shows that women are strong and knowledgeable too and they should not be underestimated by the men.