Can someone explain the ritual

Its either they were triplets, and in our culture (Tswana), we do this before the other one is laid to rest. For them not to follow the other one.

What is this cap? It's not official

Ke tla explain ka setswana, ediragala gore triplet engwe eska tsaya baba setseng

It is believed that twins come into the world together and their souls would rather depart together. The act of the surviving twin entering the grave before the deceased one is buried is meant to trick the soul of the deceased into believing they’re together in the grave.

As a black person I understand why this must be done, all the demi-whites can go to afridorum and lay a complain!

Not everything is supposed to be recorded hau

I think they were triplets and one passed away. It’s a custom that the remaining siblings go into the grave first before the deceased is laid to rest

When one of the twins passes you do that so that the other don’t follow…

Reincarnation

Normally when one of the twins passed, the one still alive must go in first before burial. In this case it seems the kids were triplets

The explanation we need it why a video was being taken.