Is it good or bad for girls to count eight characters as boys?

That is the imbalance between yin and yang in the eight characters. Not balanced enough. Generally speaking, men are yang and women are yin. But there must be yin and yang in the eight characters to balance. What you said may be roughly that women's lives seem to be more yang than yin, or they may all be yang. This situation will be what you said: a girl looks like a man. As the saying goes, marriage will be bumpy, and some are on the other hand. Of course, there are also many excellent ones, who may have a slightly worse temper, such as unyielding personality, rigid temper, short temper and independent mind. The balance of yin and yang between men and women is better, or there are more men and fewer women.