Basically so that members can feel safe to post things about their lives without anyone else knowing who they are @Sunnyside226. You can share your age, but generally we ask members don't share anything else. You can read more here.
If you do ever post anything that breaches the guidelines, don't sweat it! It happens from time to time, especially for newer members. Either your post will be edited by staff if it's a small breach, or you might have your post blocked - in which case we'd email you and work with you to re-post. You don't strike me as the kind of person who would breach guidelines on purpose so it's not something you need to worry too much about 😉