Whose childhood was not accompanied by paper airplanes?

Paper airplanes are probably the most common origami toy. When I was in elementary school, the school conditions at that time were not good and the infrastructure was not up to par. The school classrooms were old northern-style houses with tile roofs. There is no suspended ceiling inside the pointed roof, and the beams above are exposed. Look up and you will see that the roof is completely white, filled with paper airplanes. At that time, children did not have so many toys. Origami and playing with paper airplanes were the most fun games. While the teacher was writing on the blackboard, whoosh, a plane came over and said, "Pig, there is a bug on your head!" A happy childhood is easy to satisfy!