Again, I can fix most things on my car. I can afford the tools needed. But I don’t want to because opportunity cost.
One thing I have always found weird is the whole, “hey can you look at my computer? It is all slow” is considered okay to ask anyone in IT, but it (at least in the circles I was raised) inappropriate to ask a mechanic in the family to work on your car, the accountant to do your taxes, the plumber to replace your toilet.
And even with mechanics, some like to work on specific cars as a hobby, much like an engineer might want to play around with ML and work on a CRUD app for pay.
Think about having a friend who is doctor. We might often just ask them hey I have this pain in the neck what do you think could it be? It is not seen as asking them to work for you but merely asking for advise, like you might ask any friend. Advise is free right? And the person asking you for advise is happy to give their advise to you if you ask them. Reciprocity!
The problem with the computer MIGHT be very easy to fix if you know how to fix it.
But if you accept their invitation to help them then you don't want to just give up after 10 minutes. It would make you look not smart if you could not help with the problem after all. You have been hood-winked into working hard to look good.
The worst part is if you do something to their computer and some new problems appear later, you will be responsible.
I think there's an accurate perception that IT work is generally air-conditioned and doesn't involve physical danger or sewage, so it's not as big of a deal to ask for help.