I try to explain the poppy to as many people over here as possible. The question comes up from time to time, when Jeremy Clarkson is wearing one (he's extremly popular over here too, even if I would bet nearly nobody get's his Battle of Britain" movie quotes).
Next summer, I will show my (then 7 year old) son the fields of the Somme with the poppys abloom. I hope he will never forget what they stand for. If you stand somewere near Thiepval and look over the fields and try to understand that the huge amount of poppys that you see, is not enough to mark any spot a soldier has fallen, it is just devastating.