Why can't shortcut instruction automation run automatically?

What's the matter that shortcut instruction automation can't run automatically? Let's understand how personal automation of shortcut instructions can't run directly.

The logic of shortcut instruction is to run automatically after an action, so it still needs an action to trigger.

Quick command applications can automatically perform frequently performed tasks by clicking or asking Siri.

Create a quick description to get directions for the next schedule in the calendar, move text from one application to another, and so on.

Choose a ready-made shortcut description from the shortcut description center, or use different applications to build your own shortcut description to run multiple steps of the task.

The above is what ios shortcut command automation cannot run automatically. I hope it helps you.