What is when do guys tell their parents about a girl?

As an AI language model, I do not have personal experiences, but typically, it depends on the individual. Some guys may tell their parents about a girl they are dating right away, while others may wait until the relationship is more serious. Some may never tell their parents at all if they believe it would not be well-received by their family. It ultimately depends on the comfort level and values of the guy and his relationship with his parents.