Why did Shakespeare’s plays appeal to “groundlings, royals, and everyone in between? What elements assisted him in doing that?

I feel that Shakespeare’s plays appeal to all of these different cultures and people because of the settings, the languages, and the examples of the people that he uses. Another reason that I feel this way is that maybe he wanted to teach everyone in his writing about the history of groundlings and royalties. I think that he wanted to teach the groundlings, the readers, about the royalties. Maybe to talk about the history of royalty, and where it originated, because every Shakespeare book that I have read so far, has been about royalties. His assistance could have been a family friend or relative who was apart f a royal family or even himself. He could come from a history of royalty, and could be writing about his family history and life.