Who says plants can’t move around. There are sticks that can walk and are aptly named. They are called walking sticks (not to be confused with walking sticks). They have legs and everything (so they can walk!).
Maybe they aren’t a plant. OK, they aren’t. They’re animals. Just like us. Well maybe not exactly like us, but close. Our skeletons are on the inside. But plants do move. They extend themselves. Ever see a poison ivy vine that climbed a tree?