I think the key difficulty for traditional Catholic parents in trying to raise their daughters as truly feminine ladies is the fact that it is not always easy to find a proper balance and to know when to make exceptions to the normal rules.
We must protect the innocence of our children but also we must instruct them diligently to have a well-formed conscience.
We must train them delicately as to some of what is out there so that when they see the evils of the world they themselves recognize it as something they should turn away from.
I am reminded of the quote in Proverbs 22,6: "It is a proverb: A young man according to his way, even when he is old he will not depart from it." We have to teach our children from the time they are young what is good and what is evil. Yet, at the same time do it in a manner that guards their innocence. Such is not always easy, yet such is the task and duty of parents.
Also, it is important to remember that children learn by example... Many traditional Catholic mothers are not perfect examples of modesty, humility and meekness (true femininity). Their daughters see their mothers standing up to their fathers and being disrespectful towards them. So, as the daughters grow up they in turn do likewise. Granted, everyone has free-will, but it is much less rare in a family where the mother is a true model of feminine virtue do the daughters easily go astray. So, in order for our daughters to be raised as models with true feminine quality; first we mothers must become those models for them. Traditional men also ought to encourage their wives and daughters to be more feminine and support their wives in not allowing their daughters to adopt manly qualities or habits.