That’s my experience too. The older I get the more frustrated I am that people don’t want to learn from my mistakes.

It’s not that I’m a jerk about it. Most of the time it’s business types saying “you don’t need to do all that stuff - just deploy it like that, it’ll be fine”.

And then it’s not fine - and also, it’s somehow my fault.

It seems to be more about personal aggrandisement (“I’m the boss and my word is law”) rather than trying to build a great business together. I’m pretty over it.