...Prof. Ashton raised a good point: "No matter what would be ideal for people; times are changing; we need to do a reality check." (Paraphrased) All too true, although I would rather it not be. People are engaging in sexual activity or intercourse at younger ages and, effectively, the limit isn't going to stop people doing so. What it WILL stop people doing is seeking advice, help etc... Should a rather negative situation occur, because it's strictly taboo (especially due to it's illegal nature).
Clearly, some argue that it is only going to click down a gear. That is, if people engage at 14-15 when the limit's 16; they'll start engaging at 13-14 when the limit is 15. Maybe, except that "in countries with a lower age of consent, young people got involved in sex at a later age and teenage pregnancy rates were lower."[see the BBC article] This doesn't prove the case instantly, of course, but it is a good indicator; I think. As I said: early days.
Let's have a look at those countries which low age of consent have much less teen pregnancy rate than those higher age limit. By raising age limit on sex merely only intend to criminalize sexual activity among youngsters and refrain them from obtaining sexual advice and contraception.This isn't a protection but a violation of child freedom .
The age of consent isn't some license for pedophiles, or going to invite more abuse, quite the opposite. Having the age of consent be at 15 is simply reasonable from both a medical and social perspective, and we should not ever penalize teenagers for having sex or doing sexual things, which they're going to do anyway.