Back in the olden days, when I was much younger, we didn't put up our tree until Christmas Eve. It came down on January 6 (Epiphany). Now that I think about it, nobody else did, either. There were folks who decorated outdoors, and those lights usually went on on Thanksgiving night.
As I got older, the tree went up the Sunday before Christmas, or if Christmas was on the weekend, it would go up on Wednesday. Still got taken down on January 6.
DD said that this year she's putting up her tree the day after Thanksgiving because it's so much work to put it up and take it down that she wants to admire it for a while. As long as I don't have to do it, that's fine by me.