It's best to pick up around 15 relatives. In many places, there is a custom of "going single and returning double", which means that the man who goes to pick up the bride is usually an odd number, and the number of people who come back to pick up the bride and send them off is an even number. The meaning is "adding children and mouths, pairing up".
If the man takes his family too little, it lacks momentum, and if he goes too much, it can easily cause chaos and crowding in the bride's home. Photographers are also not good at work, and in addition, there are customs of drinking sweet soup in many places. If there are too many people, it will cause pressure on the bride's home, so there should be no more than 15 people.