Then you certainly shouldn’t! But if I have one icecream in my hand, I’ll much prefer go to the self-checkout instead of queuing to the register.
One local store also has a hand-held scanner/terminal you can use while shopping. I think I could do big shopping with that as well, it’s less of a chore do it while shopping. Previously I had only seen those at wholesale stores for businesses.
Then there are the cases where you want the LLM to actually interact with the page, using the current web page state and your credentials.
For example, one might want to tell it to uncheck all the “opt in” checkboxes in the page… And express this task in plain English language.
Many useful interactive agent tasks could be achieved with this. The chatbot would be merely the first step.