Yes, the age of consent in NY is 17. Therefore, both of you are of age to date. After he turns 21, he can legally drink, but other than that everything should remain the same.

Is dating a 20 year old at 17 illegal?

Mark A. Broughton, Esq. It is not illegal to date a minor (person under 18 years old), but it is illegal to have sexual relations with a minor. So you can date, but the safest approach is to wait for any sexual contact until the 17 year old is 18.