Colorado has a close-in-age exemption, also known as a "Romeo and Juliet law", to the legal age of consent.
Their incapacity is written into the statute—hence the term, “statutory” rape.
Also, children under 18 can shoot at the gun range and go hunting with a valid license.
An 18 year old is also considered an adult for crimes committed.
On the other hand, a child under 10 can’t be tried for criminal or juvenile delinquency offenses. Before 15 years old, a child can’t consent to sex so sexual activity with them, even if allegedly consensual, puts you at risk for conviction of statutory rape (sexual assault of a child).
At 12, a child may object to the appointment of a guardian if his or her parent pass on.