Can a 30 year old man go back to high school?

Legally, a 30-year-old man can generally *try* to go back to high school, but it's highly unlikely he'd be successful. High schools are designed for teenagers, and there are likely to be significant age and maturity differences that would make it a difficult and potentially disruptive experience for both the student and the school. Most high schools won't admit someone that age.

Instead of high school, a 30-year-old man seeking a high school diploma should look into 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 programs specifically for adults seeking to earn their high school equivalency.

* Online high school programs: These programs often cater to adult learners and offer flexible schedules.

These options are designed to accommodate the needs and schedules of adult learners and are far more realistic and effective than attempting to re-enroll in a traditional high school.