Sex in the media/Effect on young people. Whats the Harm?

I have been looking into the amount of sexual content in popular media ( A subjective term I know) and its possible effect on young people. Here is some of the information I have found.

In a US study by the Henry Kaiser Family Foundation called : Generation M: Media in the lives of 8 – 18 year olds it was found that they:
Watch 4 hours of TV a day
Listen to almost 2 hrs of music each day
Use the computer for recreational use 1 hr day
Play video games for almost 1 hr day
Read recreational material almost 1 hr day

SO WHAT, I HEAR YOU SAY??
SO.....WHATS THE HARM?

Of this group access to this media is often in their private bedroom:
68% have tv
54% have own dvd player
50% have video game console
31% have computer
65% have Mp3, Ipod etc

WHATS THE HARM??

In 2005
92% of movies showed sexual content
87% of sitcoms
87% of drama seriers
85% of soap operas
70% of news shows
67% of talk shows
28% of reality tv shows
(Sex on TV, A Kaiser Foundation Report 7398)

WHATS THE HARM?

In 2005, Sex on TV4, a biennial study of sexual content on tv analysed over 1000 hours of content from ALL genres;
Overall 70% of shows included some sexual content averaging 5 sexual episodes per hour.
53% of sexual scenes that incuded intercourse were between couples in an established relationship.
20% was between couples that had met but had no relationship
15% were between couples that had just met
12% the relationship was unclear.
Almost no discussion regarding safer sex, risk, consent: No discussion regarding pain, fear, erectile dysfunction etcetc


WHATS THE HARM?

Research has shown that the exposure to sexuality in the media has been related to adolescent sexual behaviour ( Pardun et al, 2005)

Research has shown that increasing sexual content on on television is related to early sexual initiation in adolescents ( Collins et al 2004)

SO.....WHATS THE HARM? IS THERE ANY HARM?