[maccard]

I dont particularly care for your generalisation about younger coders, as a younger coder. There are many of us who do care about the low level details of our code, and take extra care to write good performant code. To make a generalisation about "older" programmers - I have the feelings that older coders are stuck in their ways and aren't willing to change their behaviours, and when a younger coder tries to suggest improvements, they're hand waved away because we have less experience.

[pasta]

Well I was not trying to blame. And I 100% agree there are loads of good coders of all ages.

But knowledge about inner workings helps to understand what is going on and what can be improved.

So I don't say you should use a non GC language for example. But knowledge about memory management can help to understand memory leaks.