Okay kiddo, have you ever read a book or an article on the internet and wondered if everything you read in there is true? That's where Wikipedia comes in. It's a website where people from all over the world write and edit articles about all sorts of stuff. But, just like in real life, not everything people write is true, and sometimes people write mean or fake stuff on purpose.
That's why we have to review Wikipedia pages to make sure they are accurate and helpful. Reviewers are like special helpers who read each article really carefully and make sure everything is correct and true. They look for mistakes, missing information, and things that could confuse people who read the article.
Once the article is reviewed and fixed, it's like it gets a special stamp of approval that says "This article is great!" Then, people can read it with confidence, knowing that what they're reading is true and helpful. That's why the review process is so important, because it helps people trust the information they find on Wikipedia.