hp has a point. the whole "structural as a seperate discipline" sounds good on paper - but the bottom line is so much of civil engineering *is* structural engineering, the whole thing is rather pointless.
Also, given that some state requirements of "S.E." are so ridiculously extreme and enforcement is nil - why bother? salaries and jobs for general civil engineers who have a "structural background" are generally more plentiful and lucrative than the tiny minority that look to sign and seal structural drawings for high rises. plus, you add in the liability, and even bothering taking the added exams begins to look like a fools errand.