Lost Innocence?

I remember the days no one knew what bj's were.
In elementary school I remember a kid getting suspended for saying that word, and I also remember me totally lost in confusion and puzzled at what those two letters could possibly mean.
I remember when kissing scenes did not mean two people eating each other's faces, and even rated-R movies were shy of showing nudity scenes.

Well, I've come a long way since then.
Its easy to blame it on the media since its vulgarity level has progressed quite noticeably.
Sex, once so taboo, has become a norm and perhaps even encouraged by peers in teenage life.
Virginity has been tossed to a dark corner unnoticed and unvalued by the majority.

My rant may seem altogether pointless, but if there is a point, its this:
Innocence has become underrated.

Its a pity. I miss it. But I can see even among my close friends that the taboo of sex has been broken.
When I hear of these events unfolding around me, a mixed feeling of emotions flow through me.
Anger, sadness, despair, bitterness, sympathy.
Its becoming so tiring. Every time I hear of these events, I ask myself, is ignorance truly bliss?
Or is it better to be aware of these things?
I think its the latter, but it still doesn't ease the hurt.