Almost all American names come from the Bible, and the names are names of characters in the Bible or derived names. When a child is born, he will look for it in the Bible. In fact, there are many books on naming children now, and parents also read them.
There are also ways to name their children after their parents, grandparents, or good friends. I wrote a paper before about the name of the United States. During the interview, one person even told me that they just chose the name because they thought it sounded good.
Nowadays, many people name their children after brands, or give their children names of their own creation. Because there are so many people with the same name in the United States, in order to make their children unique, Americans have also begun to create their own names. However, most still use the previous methods.
I think the lectures on the first floor are boring. This is not a question of whether I believe it or not. No one is an expert on any issue, we just contribute what we know.
Vicky