There are a few reasons why you shouldn't look through your kids phone. First, it can be a violation of their privacy. If you're looking through their phone without their knowledge or consent, they may feel like you're invading their space. Additionally, looking through your kids phone could damage the trust between you and them. If they catch you snooping, they may not be as likely to come to you with important information in the future. Finally, going through your kids phone could give you false information about what's going on in their life. If they have something private that they don't want you to see, they may delete it before giving you their phone - meaning you won't get an accurate picture of what's going on in their life.