以下引自白宫请愿网站FAQ https://petitions.whitehouse.gov/how-why/frequently-asked-questions
Who can participate in the We the People platform?
Anyone 13 or older can create or sign a petition on WhiteHouse.gov. In
order to participate in the We the People platform on WhiteHouse.gov, users
must create a WhiteHouse.gov account and verify their email address.