This argument falsely assumes that inherited, established solutions and behavior are always preferable, because people have been doing something for years. Therefore, it must be the right way – even when there is no evidence that this is the case in that specific situation. This fallacy appeals to conservatism.

Please note that a traditional approach can be optimal, but an argument is fallacious when we assume it is per se better. After all, in many cases, past results offer no guarantee whatsoever for the future.

Appeal to tradition

In the old days…

Synonyms:
Argumentum ad antiquitatem, Appeal to common practice, Appeal to antiquity, Appeal to traditional wisdom, Proof from tradition, Appeal to past practice, Traditional wisdom