I meant that the work is needed because that's the way they decided the coins can be achieved.
You meant that, yes,
but it's wrong.
They could also decide to create all the coins in less time, maybe using different algorithm, couldn't they?
No, they couldn't.
Yes, they could decide to create all the coins right from the start, with the first created block, or even within the
genesis-block,
but the work needs to be done anyway.
But again It's true I don't understand completely how this work this way and why.
First time that I agree with what you say, well, not totally.
You not only don't understand
completely, you don't understand it
at all.
