I've seen ADHD person explain this as having every reason to do the task, know that they need to get started now, and yet, just can't get around to do it. I've certainly felt that in some scenarios in my life. It's like getting the timing to start doing the task is impossible and everything else, no matter how mundane, seems safer and more fulfilling to do.

It's like you are missing the drive to get that thing done to the point that your brain just tricks you into thinking that anything remotely productive seems more important and better to get started on now than the actual task. To me this is a rare occurrence, hence why I think I am not a ADHD person.

The problem to me is that this difficulty is hard to differentiate from self-discipline.

I suspect you will be less likely to feel that inability to get around to do the tasks that you know to be important to do it if you fail in a way that life itself, the universe, hurts you for the failure, as opposed to your boss saying "you're fired for showing up late".

I also suspect that some people use religion to fix this: Like picturing a higher being looking down and saying "Wherefore dost thou not now do that which thou must? Else, I shall smite thee from the heavens or cause thee great trouble in the afterlife."