I use ChatGPT (or Gemini) instead of web searches. You can blame the content and link farms that are top of the search results, and the search engines focusing on advertising instead of search, because we're the product.
Why your friend doesn't know about wikipedia is another matter, if i wanted a generic info page about some topic i'd go directly there. But if i wanted to know if Bob Geldof's hair is blue, I might ask a LLM instead of reading the whole wikipedia page.
I also ask LLMs for introductory info about programming topics i don't know about, because i don't want to go to google and end up on w3schools, geeksforgeeks and crap like that.
I don't really trust LLMs for advanced programming topics, you know, what people pay me for. But they're fine for giving me a function signature or even a small example.