Geeram - Don't be too concerned about it matey. As time goes by fewer and fewer youngsters will realise the significance of BoB day. This is sad, but it's a fact of life.
My son (13) knows the significance because a) his school did a term studying WW2 and he was actually taught it - a rarity these days I'm led to believe - and b) I teach him.
It was great when we were camping in Kent recently that we were buzzed by a low flying Spit (I started a thread about it) and he was able to hear that magical sound and see that beautiful plane in the sky where the Battle took place!
My dad fought so that kids could lead their lives in some form of normality and not under a Jackboot. Millions of others did as well. All we can do is attempt to educate the younger generations that they owe their relatively cushy lifestyles to the brave men and women who battled all those years ago.
Cheers.