When going to to see friends it will depend on which friend we are going to see to determine who will drive.
Standard logical rule that I believe has always existed: My friend then I drive to and from venue. Her friend then she will drive to and from the venue.
Actual rule that does exist: No matter where we are going I will always drive, if it is my friend I have to drive because it is my friend and she shouldn’t have to drive. If it is her friend then I have to drive because she wants to drink and doesn’t like driving at night.
Warning: Questioning the rule will result in anger, possible silence and statements of me being difficult