In Oregon, there is a Romeo and Juliet exemption that protects from prosecution consensual sex between two minors who are younger than 18 and fewer than three years apart in age. However, sexual contact with a child under the age of 12 is always a serious crime, no matter the age of the defendant.

Is it weird for a 16 year old and an 18 year old to date?

Is it okay for a 16 yo to DATE an 18 yo? Yes it is perfectly legal to date. Nothing in the question infered sex. People need to get it through their heads that just because you went to a movie together or had dinner together it doesnt entitle anything sexual.