It is not illegal for a 22 year old to date a 17 year old. However, it is EXTREMELY UNWISE for a 17 year old to date a 22 year old!

Beside above, what is the legal dating age in Georgia? 16

Herein, can a 16 year old date a 20 year old in Georgia?

Under Title 16, Chapter 6 of the Georgia Code, the state defines statutory rape as sexual intercourse with someone who is under 16-years-old. This is true even if it is consensual. The legal age of consent in the state of Georgia is 16. Therefore, those under that age cannot legally agree to have sex.

Is it illegal for an 18 year old to date a 16 year old in Georgia?

The sex itself is not illegal, but the circumstances could be. In addition to the issues my colleagues bring up, while it is legal for the 18 year old to have sex with the 16 year old, if he takes a picture or video (or she does), then he is guilty of possession of child pornography.