Teaching the Children

I'm not married, and I don't have children yet.  But just because that's the case, it doesn't mean I don't know what's going on involving children, and it doesn't mean I don't have well-informed opinions.
One of the things we discussed in class this past week was the way sex-ed is being taught in school.  When I was learning sex-ed, in middle school, the boys and girls were in seperate classes for the lessons, because the lessons focused on the human body, and the differences between the genders.  We learned about how a female's body changes, and what the changes would mean for sex and for procreation.  That's all remember.
Now, however, sex-ed is being taught in a completely different way.  Both males and females are being taught together.  The lessons are focusing much more on "safe sex", masturbation, a rating system of activities from french kissing to oral sex, etc. 
I believe there is an appropriate time and place for lessons such as these to be taught-- but I do not believe that the place is in the classroom.  It will be taught by teachers, who according to law, need to teach "by the book".  It does not sound like there is room to allow for the child's individuals beliefs, morals, or even comfort level.
Is this right?  Is it right for us to allow with others to deal with such a delicate subject in such a brash manner?  Not only in a way which has no regards to personal values, but in a way that lumps the individual child in with the whole of the classroom population.