"But an age of consent of 14 in places like Serbia is probably the reason that there are so many trafficked East European girls working as prostitutes in the UK." No.

I don't see how "emotional and physical problems associated with early (consensual?) sexual activity" fall into either categories.

Yes, I would assume some do. I would ask you though, why do you think that should be the government's problem?

In my country the AOC is 14 and we don't have problems like these. (The country is Serbia, please don't call it Pedostan as it is both tacky and immature.)

You can never actually delete it; just deactivate it. That basically means all your info is still stored on their servers.