In the UK
seem to think it's down to poor sex education
I was appalled at a recent survey which suggested that the majority of 16-18 year old's would/did not use condoms. It would appear to me to be the fault of the It'll Never Happen To Me attitude a lot of them appear to have. There are no excuses for not having them, you do not even have to pay for them over here.
With AIDS on the increase, something needs to be done about teenagers casual attitude to sex.