It is difficult to categorised. Drug and Sex problems exist in IS and local schools. After all they are epitome of our society. I am speaking generally, Such problems are more prevalent in IS than local schools.
My daughter was in ESF before and she had a bunch of good friends (about 8). They are from good families (I dont mean rich families. I meant families who have good values in life) and they are all very nice and kind. It's very important that you know who they hang out with.