Unusual Costom

Japan has many unusual costoms.
For example, Japanese say "Itadakimasu" before eating something.
This phrase means appreciation for cooks and farmers.
In fact, this custom is very unique for other countries.
But I thought that every country had the similar custom to Japan's at first.
So I was very surprised to know that it was not true.
I think this Japanese custom is very good.
There are some countries which doesn't have enough food.
Some people can not eat enough food every day.
So we have to appreciate that we can always have enough food.
I hope that this Japanese good custom will spread all over the world.