But no one does anything like you mentioned. OP already has his mind set: *This must lead to a lot of problems which I'll only face after ramping up, but even

But no one does anything like you mentioned. OP already has his mind set: *This must lead to a lot of problems which I'll only face after ramping up, but even onboarding is painful if you don't have e.g. clear automated testing set up.* He just KNOWS that it MUST lead to a lot of problems. I am fighting with this mindset at my work and I am sick and tired because people who KNOW - don't show any measurements. Even if do measurements that in reality those unit tests of crud are waste of time I will be shot down by "that is what professionals do", while we basically have 0 defects because of backend code. While all the issues are on the frontend because of css/browser.