Absolutely, totally, and completely agree.

Especially the issue with friends.

I was fixing all my friends computers for years...
funny that..

they had no problem paying ungodly sums to take their systems into shops for fixing...
Only for the issue to still be there or worse...
then they would come to me..
and I would be cleaning up a nightmare.

Finally I insisted dual os's to be able to troubleshoot better at the least ..
for practicality it was usually Lubuntu and Windows...
I also insisted they play more and get used to Linux for their own ease of use ...and less likelihood of screwing things up than with windows..
None of them really bothered...
they just kept making a mess of their windows systems...

Finally I had enough when I always had at least one friend's laptop on my desk in need for service.
I told everyone that if they had no compunction to go to a shop for servicing and pay a stupid amount for no result...
and then bring it to me and expect it the same service for free...
That wasn't going to be happening anymore .
They could pay me half the going rate for properly fixing their laptops.

Now...
I have no laptops in need of servicing on my desk...
and all those friends are paying top dollar for shoddy work, still having the same issues (mainly due to their poor practices and desire NOT to understand even the basics ..the fundamentals..)
more than half of them simply burn through a computer yearly or every two years... never doing the slightest to maintain it..and buy a new one...(epic waste frankly)...
and they complain about the cost...
idiocy.
I just nod and smile now....It isn't realistically worth the effort to do more.