Which service channel costs a bank the most to provide?

1. Banks reach customers through human channels and through digital channels. 2. Human channels cover in-person transactions and service calls with a live agent. 3. Of all these, in-person transactions are the most expensive service a bank provides. 4. Not every transaction with a customer requires human intervention, which is the opening banks are chasing. 5. That is why chatbots are used to streamline operations and automate customer support. 6. Digital channels still cost money to build and run, but their cost per transaction is far below that of a staffed counter. _Source: OpenStax Introduction to Business (CC BY 4.0), Ch 15 "Understanding Money and Financial Institutions", section 15.6 Trends in Financial Institutions_