Underage sex is surprisingly prevalent in a country as conservative as Singapore . Nobody talks much about it even in schools and among students but I can assure you that quite a handful of students engage in it . There was even a girl in my secondary school that had prostituted herself for money . Sure you can say that it ' s consensual they were both willing parties etc but sex before 16 is still underage sex . I don ' t know what you ' d define as a problem but seeing how impulsive some of my friends and peers are is really making worried about the future of our nation . Edit Another thing I would like to add on is that do you really thing 16 year old is a good age to make rational decisions about topics like sex ? Yes we have sex talks in schools promoting abstinence , safe sex etc but let ' s not kid ourselves here . 16 years olds are by larger still rather immature individuals that by and large lack forethought . It is legal to have sex at 16 years old but I don ' t think a 16 year old would be ready for such situations .