First-class cultural relics are generally imitations, and only some exhibition halls will put physical objects. Other cultural relics are not fragile, and they will basically be authentic, so there is truth and falsehood.
On the one hand, this is related to the professionalism of donors and buyers and sellers. Some people who handle cultural relics have no professional quality to judge authenticity, let alone excellent taste in appreciation. Many donors have impure purposes, specialize in shoddy goods in the name of donation, and put pressure on society and museums with fake goods, which not only successfully realized fraud, but also turned it into fame and fortune.
On the other hand, it is related to the operation of the museum. Many university museums have weak collections, but they have to be opened under pressure. Without good exhibits, it can only be shoddy. In the face of some purchases, the procedures are confusing, and sometimes you can only endorse fakes. The loss of the basic credibility of universities and society is also a major factor in the reputation supply of museums.
Museum is the last place where human civilization and heritage are preserved, and it also represents the public's credibility. It is not entirely shameful that there are "fakes" in museums. Some of them are default exhibition rules and helpless actions. However, in the face of those fraudulent acts of "drunkenness is not in the wine", it is unforgivable.
We, the general public, should be the supervisors of the museum. After all, we don't want future generations to get high in a pile of fakes.