Our advice to any adult, including someone who is 18, who seeks to date a fifteen-year-old is simple: do not. It is best to not claim one is “dating” another person even if one wants to say this. “Dating” can certainly imply sexual contact, which is illegal between a fifteen-year-old and an eighteen-year-old.

Is an 18 year old dating a 16 year old wrong?

No this is not illegal. Simply dating a person over age 18 is not illegal. It can become illegal for a person who is 18 once sex is involved.