Do you keep your Christmas tree up until twelfth night?

When I was growing up, everyone left their tree and decorations up until twelfth night, or the day after, but these days I see a lot of people commenting that they take the tree down much earlier, sometimes even before New Year’s Day. What are the reasons for this? Traditionally, there are twelve days of Christmas and it seems an easy excuse for employers to reduce holiday entitlement further if people only care about the 25th.