Can a teacher go out with an ex student?

Can you date your high school teacher after you graduate? Yes, but it is a growing taboo, at least in America. It is to the point that some states have passed or considered laws forbidding teachers to have any sexual relations with students until they have graduated for at least a year, regardless of age.

Is it illegal to date a student?

School staff who are not a students direct classroom teacher could still face jail time if they have a sexual relationship with a student. The NSW Government is introducing changes to the special care laws that make it an offence for teachers to have sex with a student aged 16 or 17.