Chesterton's fence
Chesterton’s fence is the principle that before removing a rule, law, policy or practice, one should first understand why it was implemented in the first place. The concept originates from G.K. Chesterton, an English author. It is often cited as a type of conservative or cautionary saying. The idea is to avoid unintended consequences that could arise from hasty or uninformed changes. Further reading Chesterton’s fence - Wiktionary