I think you're missing the point here. It's more that people couldn't even be bothered to search up how to do something (that takes seconds) that they want to do first, and instead just rely on someone they think is an expert without putting in any effort at all.
Your examples don't really make sense either as a lot of these are paid professions for larger tasks that most people simply don't want to do. There's a huge difference in searching online "how to install a Firefox extension" vs "how to do an weave", etc.
End of the day, the average person doesn't care and if they truly did they'd have the initiative to have just researched it and done it on their own.
Bringing it back to the whole thing about Linux, can you imagine how frustrating it would be to have to help debug a user's Linux installation when they already need help with installing a browser add on? I work with tech and Linux on a daily basis and I already find it frustrating doing it for myself (fuck Nvidia drivers). No way am I gonna recommend it to someone else.