這個法律是真的有啊

The age of consent to sexual activity in the United States varies by state, ranging from 16 to 18 years old.

https://aspe.hhs.gov/reports/statutory-rape-guide-state-laws-reporting-requirements-1

The term “statutory rape” appears throughout this paper; however few states have laws which specifically use this term. More frequently, a state’s statute will include a number of offenses that have age-specific provisions addressing voluntary sexual acts and the age at which an individual can legally consent to such acts. For the purposes of this overview, “statutory rape” refers to sexual acts that would be legal if not for the age of at least one of the parties. The individual state summaries, in Section III of the report, reference the specific offenses that constitute statutory rape.