Why authorizing or disabling interactions with previous buttons in my conversation?

In the publish section, on the user behavior management button, do you have examples on why using to disable interactions with former buttons?
It may be helpful but I need to see in which case I could use it.

You can choose your user to be able to click on a former on not. It will depend on scenario of your chatbot. You can also display details such as typing indicator, sent date…