Can you enroll in high school when are 18 and not living with a parent or guardian?

In most places, yes, you can enroll in high school at 18 even if you're not living with a parent or guardian. However, there might be some differences depending on the state or school district's policies. Some districts might require additional documentation or might offer alternative pathways like GED programs instead of traditional high school. It's best to contact your local school district or a high school directly to inquire about their specific enrollment policies for adult students.