True, but it's not like locks have become simpler over the years. I'm sure your old British clunker will be a breath of fresh air.
Not sure if this is the correct strategy, but that brass pin that you can see in the side on your pic - that once fell out of my car and the entire lock assembly came out attached to my key. Had to carefully stuff the guts back in making sure the springs and tumblers stayed in their correct places. Found and replaced the pin and ran a ring of tape around it to keep that from happening again.