Why do the daughters of a man with hemophilia not themselves suffer from blood clotting?

The hemophilia gene is linked to the X chromosome. It is obvious that the man married a healthy woman who is not a carrier of the disease. Thanks to this, they had daughters who do not suffer from blood clotting. However, these girls are carriers of the hemophilia gene. Therefore, in the future, this man has the likelihood of having grandchildren who will develop hemophilia. If boys were born to this man with hemophilia, the ratio of healthy boys to sick boys would be 50% to 50%.