Regarding the worship, an uncle (a relative) wanted to give his daughter's worship to my father. What does this mean? I don't understand the liturgy. What are the disadvantages?

How do you say this? We also have this kind of thing. We call it stepping on the threshold, mostly because the child is weak, and then we ask the fortune teller what is going on, and then the fortune teller says what kind of michel platini or godmother we want to recognize. I have recognized it since I was a child. The other is not related by blood, because the two families have a good relationship.