Which distros to choose, what are their pros and cons, which distros works best with whatever hardware they have? What about which of their existing hardware doesn’t work on Linux? Which of the software they use everyday and probably have spent money on the licenses doesn’t work on Linux at all and which can kinda work using WINE?

These are all questions that are not easily answered by people that lack the prior knowledge of Linux. Just saying “use Linux” is not simply useless advice if you don’t know their use case or the hardware they use, it’s practically harming the first time experience of non-tech savvy people with Linux.