Why is it taboo to buy18th floor when buying a house?

Buy a house without buying eighteen floors, from eighteen floors of hell.

Buying a house is a top priority for China people. No matter where you are, if you have a house, you have a home. How profound China culture is. Hell should be eighteen floors underground, how can it become eighteen floors above ground! It's unlucky anyway. On this issue, China people would rather believe it, but have to believe it. Even if you don't believe it, you are afraid of being laughed at by others. Under the influence of this culture, the eighteenth floor has become an idle building, and even if the price is very cheap, it is difficult to clinch a deal. Therefore, the floors developed by some developers do not have the level of 18, but are generally 17A, 17B, 17F and so on.