Have a problem? Drive down to the Apple store.
Then I moved to a European country without a single Apple store.
Did you know that Apple will only replace iPhones under warranty that were purchased in the same country (EU is a single market)? [0]
Meaning, if I buy an iPhone in Europe, Apple won't service it under warranty in the US and visa versa. I have to mail it to the country of purchase.
There are a lot of locations in the world without an Apple store, and I help this makes it easier to get support locally.
I recently switched to the M1 from Lenovo's X1 Carbon line and one of the things I appreciated about Lenovo was having a global 3rd party support network with a massive footprint to service warranty issues.
If I have problems with my M1 I need to mail it somewhere.