It is expected to protect your friend from harmful relationships.
Jan's best friend Ann was just asked to go on a date with a cute guy who is known to be abusive.
Jan wants the best for Ann.
Jan forbids Ann from going on a date or meeting with the man.
Jan lets Ann go on the date thinking that she will enjoy it.
Ann gets the chance to meet someone else who isn't abusive to women.
Ann will suffer in the long-term if she decides to date the man.