Why won’t we leave Christmas lights up, but we install permanent lights in trees?

During the Christmas season we get asked to leave Christmas lights up all the time, the reason we can’t is because the lights will strangle the tree as it grows, and it will ruin the lights. But then how do we install permanent lights in trees with landscape lighting? Well we use special brackets to attach the wire for the lights to the tree that don’t strangle the tree. The bracket breaks when the tree gets bigger instead of the wire breaking, then we come and replace the bracket.