不对,未成年人可以放弃美国国籍,只要他/她能证明自己是自愿的,也就是说,假如你只有5-6岁,你无法证明(无法让领事馆官员相信,你也就无法放弃),但如果你16岁,就完全可以。美国法律规定如下:
Minors seeking to renounce their own US citizenship must demonstrate to a consular officer that they are acting voluntarily and fully understand the implications and consequences of the renunciation. The renouncing minor will have to convince the officer that they are not subject to duress or undue influence and voluntarily want to renounce.