Interesting anecdote: I was interviewing a full stack developer, and I asked him to build a simple react UI. He was allowed to use google, but couldn't come up

Interesting anecdote: I was interviewing a full stack developer, and I asked him to build a simple react UI. He was allowed to use google, but couldn't come up with a solution. He then said if he had access to chatGPT, he could've solved it..We didn't hire him, but should that be an expectation? Can you use chatGPT on an interview?