True. Problem could be that most people don't know how to be "intimate" (except physically) don't know HOW to get to know each other or work as a team. We tend to be a product of our parents relationship, for that's all we ever saw... and perhaps we don't know what comprises a lasting relationship.
Certainly schools would be better off teaching some marital skills, instead of all the PC BS taught today.
If you mean The Hand That Rocks The Cradle, a/k/a the NEA public schools, no, no, no.
I'm bettin' you'd go with option #1, yes?
Unfortunately, children are taught more about physical intimacy, and allowed to learn less about themselves.
One of the few benefits of organized religion is a framework for comparison of your beliefs with a standard; an opportunity to confront why you believe the things you believe. Political correctness has muzzled such constructive debate in the school environment; the conclusions are forgone. Labor laws which restrict the opportunities for our youth to make meaningful contributions to their communities further retard development of the individual regardless of sex, creed, or racial/ethnic background.
When and where I grew up, we could join the local Volunteer Fire Department at 14 as a junior member, be a full-fledged member at 16, an officer at 18. You did a man's job(if you were a male--Hell if you were one of the few females who made the non-gender normed grade, you still did a man's job), and got the respect due you for it (especially if you were a woman, because everyone knew the only reason you were there was because you could hack it and wanted to).
Ladling out daily rations of self-esteem makes kids feel good, but that leaves them with little but a feeling. They don't know why. That only comes with accomplishing something.
In that vein, feeling good crowds over into marital relationships, especially when you can't possibly relate to another person who you are if you do not know. Complicate that with sex, commonly prescribed mood altering drugs, low moral expectations, and the stage is set for disaster.
My advice to young couples?
Don't have sex for the first six months, and see if you keep getting along. Go someplace where there are no distractions and talk. If that works, don't quit talking.