There's a lot of truth in what you say but I think the conclusion you landed on is too broad.

There will exist people moving quickly who have failed to plan, but a lot also incorporate moving quickly as part of their plan, simply because that's how they prefer doing things.

It's true that this kind of planning is vulnerable to unexpected problems - a missed connection, a queue, whatever it might be - but over time it can still work out rational if you accept this risk and just want to spend less of your time in aggregate in transit, with spells of over-provisioned waiting time, or just prefer the experience of moving quickly (there is much said about the benefits of slowing down, less said about the equally valid disposition of finding flow in the act of moving quickly, which many people also experience).