我刚才去查了，create account时是没有年龄这一栏，但它的Terms of Participation有要求13岁以上

，，，In order to participate in We the People, you must create a WhiteHouse.gov User Account.
You are required to use a valid email address when registering your account. Only one
account per individual is allowed. You must be 13 or older in order to create an account
and participate in We the People. Creating and signing We the People petitions must be
done by individuals interacting directly with WhiteHouse.gov ，，，