That sounds like a nice tradition, thanks for sharing.

I don't think you can blame the kids for picking up the US style trick or treating (I'm not saying you are, but it's tempting for anyone), you have to look at what surrounds them.

I guess that it is school, parents and media - in that order of importance - which introduce these new traditions, which are much more shallow than the older ones, much less meaningful.

I think it's a case of laziness about what is exciting and modern for children, perhaps what toys are available, etc. that leads teachers and parents to introduce these without much of a thought. It's that thoughtlessness that's the true problem in my opinion.