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?
Right tools and skills, which is an important part. Just buying the appropriate pick won’t magically make you able to open a disc detainer lock, but sure, wafer pins locks can literally be opened by randomly sticking a paperclip in it and using a tensioner.
Yeah but the problem is a LOT of common domestic door locks and padlocks are vulnerable to low skill attacks like raking or other simple bypasses that you can learn in a couple hours. The number of lock makers that cheap out and neglect even basic higher security features is shocking. Unless you really go out of your way and specifically go looking for a quality lock are you unlikely to find one with something like security pins and higher tolerances that resist picking.