Although all of my sex education experiences only talk about "one man - one woman" sex... the basic message of safe-sex did have some impact. I myself decided that I would only have sex while in a relationship with a committed man (OK, i did crack once, but it was protected... just not in a relationship) I am very adamant about only safe-sex until years in a loving, trusting, solid relationship after at least a year of testing negative together... then I would start to consider unprotected sex.
I believe that advertisers with mass media take a meager approach to talking about safe sex... the effects on a person's health are hardly ever discussed, and with other similar messages, are often ignored by younger generations. With each generation, people think they are more invincible than ever.
The majority of our sex education in middle and high school discussed a range of topics, scrunched into one semester. The majority of safe-sex talk involved STD's... but very little was said about HIV and AIDS. I can not recall one moment in my health class that discussed same-sex relationships longer than five minutes.
I work at a Intermediate School District (In michigan... ISD's are above individual school districts and they support programs and education that cannot be supported by individual districts) and the materials that I see for health education are somewhat idealistic... the educators assume that the children listen to everything and that we live in a utopia of some kind.
I recall one survey we were included in in middle school... it asked us all of the typical questions, "have you had sex" and "is sex OK with... married adults, etc."... If I recall correctly, I was the only one at my table (of 12 people) that took it seriously and gave honest answers.
In all, I believe that people need to wake up to the situation on hand and tackle it the way it needs to be. We can no longer live in ignorance, it has cost too much already.