Industrial dishwasher breaks down? You need to get an electrician there ASAP.
Cell phone breaks down? Throw it away and buy a new one.
Brazil has very low salaries for skilled workers, so it makes sense that it's cheap to find somebody to fix your phone.
Like 50%+ of all repairs are mobile phone repairs
It's also a repair that demands some amount of training. I imagine people fix a lot of things without getting them to a shop.
Everybody wants that juicy, juicy cheap labour, but nobody wants to be the cheap worker.
Not even the joke is funny. People repeating it seriously is even less so.
Anyway, you would be right if you are trying to claim that the repairmen isn't the party maintaining the irrational situation, so they are powerless to fix it.
But I think that there is always some reason or another why nobody is offering a service which seems to have great demand among customers.
You need to be able to fix microscopic flaws in soldering.
There are locked-down components that you cannot replace.
Here is a referenece: https://www.ipadrehab.com/index.cfm?Page=About
If it was a good business, then there would be cell phone repair shops on every corner in Europe, like you have in other parts of the world where that makes sense.