When buying my child her first iPhone we went through so many used devices at the local phone store which had all been refurbished or repaired using sub standard 3rd party screens.

Being able to see Apple’s warning on the iPhone 11 and up "Unable to verify this iPhone has a genuine Apple display” meant we were able to find a phone which was still stock.

I’m a big proponent of the right to repair but in this case Apple’s repair deterrence feature had a big benefit for us.