Can one mention an underage child in a story?

Yes, you can mention an underage child in a story. However, it should be done with care. For example, in children's literature, underage characters are often used to teach valuable lessons. But one must be careful not to expose them to any harm or inappropriate situations.

Yes. 'Harry Potter' series has underage characters like Harry, Hermione, and Ron. Their stories of facing challenges at Hogwarts are very popular.

Definitely. However, when mentioning more than 10 elements, you need to have a clear structure and a logical connection between them to maintain the coherence and readability of the story.

You could start by giving a clear description of the person's appearance and personality. That way, readers can picture them easily.

It could be that the story has a predefined scope or set of elements and adding a mention doesn't fit within those boundaries. Also, it might violate the narrative consistency or the author's original vision.

Sure, you can mention Twitter in a novel if it fits the story or the context. It could add a contemporary touch.

Sure, you can. There's no strict rule against it. It depends on the context and the style of your novel.

Sure, you can. But there might be some legal and ethical considerations depending on how and why you do it.

Sure, you can. There's no rule against it. It can add an interesting element to your story.

Yes, you can mention them. It might add a modern touch or be relevant if the plot involves technology. However, be careful not to overdo it and make it seem forced or out of place.