Why can't i buy the moon?

I'm curious, could you explain to me why it's not possible for an individual to purchase the moon? It's a fascinating concept, and I'm wondering if there are any legal, logistical, or practical barriers that prevent someone from owning such a celestial body. Additionally, I'm interested in hearing your thoughts on whether it would even be feasible or beneficial to own the moon, considering its unique properties and the potential implications of such an ownership claim.