What is considered "childish" in fictional writing?

Question

There are some people who have read some of my book so far and they think it is childish and then some say it's somewhat morbid. What are your views on what each of those terms means?

Answer 1

Childish would mean that some of your ideas or statements may be juvenile in nature (young), meaning something a child would say or do. Morbid means sickening, degenerate and/or death like.