I saw that and nearly jumped down someone's throat! More of the dominant culture's sex-negative thinking, probably, although I'm not yet certain they aren't referring to risky/unprotected/unsafe sex. It's hard to say.
Also, not all drug use is drug abuse.
I, too, found the "All teens"...
There is virtually no way to read it that doesn't make it look like it's talking about homosexuality, but if you try very hard to put yourself inside the mind of the person who wrote it, it is possible to understand it as saying "It's immoral of you to take such risks in safety precaution and...