I think that there is a balance to be met at what other people would consider the christmas season. If there are things as a family we want to do, we're not not going to do them, like giving presents just because it may seem close to a christmas tradition.
Here in Australia, during the christmas season, many organisations close down for about a month for the end of the year. This therefore is best time for the family to get together as most of us our spread out over the continent. We get together, some traveling over 2000km and we share meals and exchange presents, as during the year most of us just send cards because posting a present would normally cost more then the present itself. I'm not going to say "Can't exchange presents now because the world see's it's christmas time". I'm not going to be dictated what I do and what I don't do because of their traditions.
As for christmas decorations and traditional foods - well christmas tradition is winter and it's smack bang in the middle of summer here. I've actually not met an Aussie yet who sits down to have huge turkey's and cover their house with decoration, you might find the occasional house with lights out the front, but they're normally far and few between. So I've never been asked why, when people come into our house at that time, we don't have a christmas tree or any decorations. So no one obviously thinks it's that weird to ask.