Should the behavior of a child be 100% attributed to their parents or lock there of? why or why not?

No, a child’s behavior is not 100% to their parents.
Factors that can cause a child behavior:
1.how they are raised/ discipline received
2. Their mental and physical abilities (any type of disorders could affect behavior)
3. Their home life. Ex: divorced parents, abusive family, no family, lack of parenting, financial struggles etc
4. Although some of it could be from the parents genetically. Ex: if a parent has anger issue it could be passed down to child.
Hope this helps some!