The youngest person to receive their PhD was 13, per the internet, so yes it is possible for a 12-year-old to be in grad school. Although, at least when I was

The youngest person to receive their PhD was 13, per the internet, so yes it is possible for a 12-year-old to be in grad school. Although, at least when I was in university, even undergrads still got the @university.edu email address.