Dating someone who already has children is a major choice that many people struggle with. While the person in the relationship may be okay with being a bonus parent, their family may not always be accepting of a new child in their lives. Many families struggle with blending and it can cause a ton of issues in a relationship overall.
However, there are times when messy relationships can cause individuals to want to be a bit cautious when accepting new children and bringing them into a family dynamic. Many will argue that they don't want to hurt a child should things fall apart.