I was explaining that the common argument (curved mirrors cause mistakes) doesn't make any sense (because other mirrors also cause mistakes) and how that argument could lead to a law anyway (because people are very used to regular mirrors and the mistakes they cause). You're reading a judgment into that, but I don't think I wrote one.

I don't condemn anyone for taking decisions based on what seems to make sense, when the stakes aren't very high and in the absence of anyone telling them otherwise. We can't expect decisionmakers to be experts in everything and we can't expect them to hire experts for every little detail. As long as things get changed when the facts are presented, I'm not complaining.