Allowing gals to volunteer for those clerical roles, as in World War II, both in America & Britain, would have the effect that you suggest. Drafting—that is forcing them into those positions is to repeal a chivalric code that has brought out the best in men for over 1,000 years.
We can always argue the merits of drafting women if and when that time comes, but registering for the draft does no harm, and bestows a sense of responsibility. It also treats 18 year old men and women equally under the law.