Children start forming their own views quite early, around ages 3 to 7. At this stage, they begin to express what they like and dislike. They're mostly influenced by their family and the environment around them. They also start asking lots of questions about the world, which helps them understand basic concepts of right and wrong. They often imitate adults and peers, which plays a big role in shaping their early opinions.

In middle childhood, around ages 8 to 12, children start to think more independently. They are influenced by their school environment and friends. They also get exposed to different ideas through media. This is when they might start questioning what their parents say and develop their own interests and hobbies, which help shape their opinions.

Adolescence, from ages 13 to 18, is when children really start forming their own views. They develop critical thinking skills and often challenge authority and societal norms. Social media and global perspectives influence them a lot. They begin to formulate their own beliefs and values, and while peers still have an influence, their sense of individuality grows stronger.