At the introduction ceremony, everyone present will stand up to briefly introduce themselves. Except for people who are not too close to the family.It's an event of about 10-15 people and most times takes place in the living room.
What if the girl refuses to marry after that intro? The man would have proposed to the lady before they even go to their families to talk about Introduction ceremony and wedding. In a case where the lady rejected the proposal it won't even get to the stage of informing family members.
I understand now. Thanks for explaining