They can date but cant have sex until 17. The legal age of consent to sex in New York is 17.

Can a 20 year old go out with a 16 year old?

There arent any laws around being in a non-sexual relationship where one person is under 18 and the other over. Once you turn 16 its not illegal for someone to have sex with you no matter how old they are. Something else to think about would be how the relationship is going to work.

Can a 16 year old date a 21 year old in New York?

If the minor is 15 or 16 and their sexual partner is less than four years older, the New York age of consent law does not apply. “What if Im 21 or older?” In New York, it is against the law for someone age 21 or older to have sex with a minor who is under the age of 17, period.