Trees have roots that go way underground, the roots are 15-20 feet down into the earth,and only tornado's,lightning,or lava can take tree's and for us humans,we move tree's do too, but they can only move their branches,and we move our whole body. Anything can take us down to fall. If we never fell, we wouldn't have some of our life. So thats why we fall and tree's don't.
Do you like 65 F degrees?