Modern civilization has made many changes in how people interact, and some people have found it is best to go out on dates where they are not alone with a person they do not know very well. They have found that there is safety in numbers, so they begin their relationships by including their date in group activities. It can be a good way to figure out if the person is right for them because they will have to interact with the friends of their date, and it can be a good way to friends to warn them if the person seems less than a good match for someone they know well.
There have been many times in history where groups of young people were encouraged to spend time together, and it was part of the dating rituals of many tribes. It helped the elders see how they interacted on a personal level, and they would then be better able to inform families of the best match for their children. While this behavior is not necessarily a part of that type of culture, it does give friends and family an opportunity to let their children date without the concerns that occur in the modern world.
Group dating is about sharing fun in various activities, and the group generally votes on the activity they choose. There might be several choices for consideration, and the people who make the choices are given an opportunity to sway the group their way. Compromise is sometimes involved, and the main goal is to make sure everyone has a good time without the dangers modern life presents.
Chaperones are not generally a part of this culture today, and parents rely heavily on friends to censure each other in their peer group. They see it as a way to let their children make their own decisions, and their hope is that the group will provide them with enough safety to make their choices and mistakes ones they can recover from easily.