It’s my understanding that mass produced items are all basically the same. If you buy something like a toothbrush, for example, then any other toothbrush from that same assembly line is going to be basically the same and have all the same specs (with the exception with minor defects here and there), because the machinery and process to make any those toothbrushes are all basically the same.
But that can’t be the case with locks and keys. Because if every lock and key were the same then there’d be no point in having them. Anyone could just bought the same key/lock combo could use it to unlock your front door. So all or most keys and locks must be unique. So how are they mass produced in a way that preserves their uniqueness?
I don’t know the outcome, I left shortly after. People owned these units, HOA can force a particular style of lock to match all the other units, but they can’t bust into homes and force homeowners to change their locks. How each homeowner resolved the issue wasn’t their concern, but I do think they hired a locksmith as a courtesy. It just took HOA a long time to figure out what to do.