19 w/ 16

Florida

Why is it illegal for a 28 yr old female to engage in consensual sex with a 17 yr old male, yet, a 19 yr old can engage in sexual conduct with a 16 yr old and that is not considered illegal?

In Florida, a person under 24 can engage in consensual sexual activity with a person 16 or older. A person under the age of 16 cannot be a participant in any sexual activity.