First of all, the second-hand housing property itself has the characteristics of appreciation and preservation, which makes it impossible for a good house to be squeezed out of the market by a second house.
Secondly, real estate is real estate, so the past of real estate can be found out, so the history of real estate is very transparent, and it is impossible to shoddy.
Finally, the value of real estate can be guided by intuition and inquiry.