Cosmopolitan is about sex, fashion, careers, etc.
It's for more mature people who can handle reading about the body and sex in general. My opinion as to whom should and shouldn't be reading this magazine is that anyone over the age of 16 is mature enough to read about sex. I personally like reading about sex and the body. There are a lot of things that young teens can learn from Cosmo as long as they are mature enough to understand what they are reading. The best part of the magazine is all the sex and body questions.