That is why presents should be hidden under the tree.
They're not hidden though. It's quite obvious that they're under the tree.
Presents left on the table in Germany are also wrapped.
In Ireland the pressies go under the tree on Christmas Eve, in the evening. In our house we always used to wrap our presents in the afternoon or early evening and gradually add them. It was lovely to see the spectacle appear over the course of the day. When they were all there, my mother always used to shake her head and say 'God Almighty, aren't we very greedy! All those presents, it's a disgrace!' :)) But a lot of them were just small things, not expensive. We liked to buy each other a lot of little things, rather than one or two big presents.