Can a 21 year old have sex with a 16 year old and not get in trouble even though the age of majority is 18 in nc (yet both parties are under the age of 24?

In North Carolina the age of consent is 16.

The 21 year old would not be in violation of the statutory rape laws if persuing a sexual relationship with the 16 year old; however, until the minor turns 18, the parents have full legal authority over the minor and if the parents object to the relationship, there may have legal grounds to prevent the relationship from continuing.

Some adult activities pursued by a 21 year old may not be legal for a minor. This puts the 21 year old at risk of an arrest for violations of other state laws.