Some models back then could have had a child-lock block on unlocking the door.
Not on the front passenger door. Child locks are on the back doors only.
You may be right. There were some models back then that had interesting percs. I just didn’t want to rule out anything.
One thing should be said here. I think it’s the window settings, and not the door locks in the back.
I don’t think you ever set it up so you can’t exit from within the car. Perhaps I’m not thinking clearly here though.