Personally, I found it before being a JW and find it now that I am not a JW far more demanding not to celebrate Christmas.
It is easier to have a tag like - "I am one of Jehovah's Witnesses and do not celebrate Christmas", than not to have a tag. People in general require far more information when you step outside of the pigeon-hole as to why you have objections.
I do remember looking on with a slacked-jaw at some of my brothers & sisters in the truth who failed to completely avoid the celebration. One sister insisted on a turkey meal and an afternoons rest and friends round on Christmas day. Weird behaviour I thought. Although I knew many JWs who were extreme and would not observe any part of the celebration, avoiding it like the plague.
People are diverse and have their own ways of coping.
It is not easy to avoid Christmas if you live in the west. Lets face it!