your opinion is retarded because engineers don't operate like that, it's exactly the opposite, we follow consolidated best practices and are always wary to change designs that work, so much that standard procedures have been developed to help scrutiny all the potential effects of modifications (e.g. dfmea). funnily enough, i know a brasilian engineer who tries to carry over old stuff like it's written in the bible, but most likely you haven't met many in the favela
Italy