So does your brain. And yes, you are correct that at this moment ChatGPT is not very good at producing factually correct information on many topics, but that's not the only reason chatbots exist. It can do many more things, and I personally (as a programmer) and some people I know from different fields use it daily because it provides value for us (enough value in fact to make me pay the $25/mo price for premium).
For example just yesterday it helped me build a proof of concept in Python to test whether a solution to a problem we had at work would work. With its help I've built a working PoC in literally 10 minutes, something that would take me probably more than 2 hours to complete if I didn't have the help because I'm not even a Python programmer (I'm in a different field entirely).