Firstly, Moon has a huge influence on Earth's waves, if we had our Own Private Moon, waves may keep on following us! Secondly, if we had our Own Private Moon, Earth may soon become very very bright, our original Moon may exit the Solar System! Thirdly, if we had our Own Private Moon, there may not be much space left for others in our house! Fourthly, if we had our Own Private Moon, some people may sell their Private Moon and become a Trillionaire! Lastly, if we had our Own Private Moon, Aliens may try to steal our Private Moon from us!