Am I antiquated, or do a lot of the ways people use AI agents make no sense?

I keep seeing people talk about using agents for tasks that genuinely confuse me and make me ask: "Why would you use an agent for that? Seems like a manual and/or deterministic solution would be better." Examples: Someone setup their AI agent to check the United Airlines seating chart every 1 minute and change their seat if a better one was found. a) United is likely to block you and b) what if the agent hallucinates or makes a mistake and chooses a worse seat? People are using AI agents to buy coffee, book restaurants, etc. Do people truly prefer using a chatbot to order drinks or food than a well designed app or website UI? Another person uses their AI agent to do things like read their travel confirmation emails and send the pertinent details to their coworkers. What if the AI makes a mistake or hallucinates - would it be easier to take 10 seconds to just copy/paste the info out of the email? I see companies promoting MCP servers for mission critical IT tasks like deploying web apps and renewing expiring SSL certificates. Those are tasks with <0.01% failure tolerance - wouldn't it be better to use a deterministic solution (possibly use AI to write an automation script)? Is most of this just hype and people using AI just because they can (and they'll switch back to a better solution once the novelty wears off?) Or am I missing the point?