Seminarians are not little boys.  They are adult men---who will soon be out ministering to people in parishes---listening to people's confessions OR meeting with parishioners to discuss with them personal issues. Hiding seminarians from discussions of sex, whether heterosexual or homosexual is NOT the way to prepare them for their ministry.  

Because sexuality was NOT DISCUSSED EXTENSIVLY in past years--young priests and later, Future Bishops---were ignorant of the sexual ramifications for straight and homosexual couples, they knew next to nothing about women's issues [many of these men in years past entered the junior seminary right after 8th grade], and the seminaries then gave shabby or no biology classes in the high school junior seminary.  Ignorance of issues--on both sides of the issue is not the way to prepare anyone in the Church for a Ministry of Service.