For people like you and me, the only reason for contacting support is when a human decision is needed, ie the UI doesn't allow us to do what we need. This is always the company's fault, and a chatbot is of no use in these cases.

But many people will contact support instantly when they think of something, no matter what. Even if the website and other customer-facing material is crystal clear and has all information necessary.

AI chatbots is the way a company deals with the latter, because these customers most of all want a conversation. The question is if they will be satisfied with a robot, or still demand to talk to a person.

I still think this happens because the self-service solution aren't good enough and information isn't available where it needs to be. E.g. why is operational status for my ISP buried five pages deep behind an obscure link in a footer.

But chatbots can make decisions too.