Can you go back to high school im 20 years old?

No, you generally cannot go back to high school at age 20. High schools are designed for students within a specific age range (typically 14-18), and enrollment policies are usually very strict about age limits. Once you've aged out of that range, you're no longer eligible for traditional high school.

If you need a high school diploma, you'd need to explore alternative options like:

* GED (General Educational Development) test: This is a widely accepted alternative to a high school diploma.

* Adult education programs: Many communities offer adult high school programs specifically designed for older students who need to complete their education.

* Online high school programs: Several online programs cater to adults who need to earn a high school diploma at their own pace.

These options are much more suitable than trying to re-enroll in a regular high school.