How old do you have to be to get your sectum done?

Don’t you mean ‘septum’?

Just like any other body piercing, it’s 18+ years old without a parent, and any age under that is required to have parental consent.

It’s a ‘septum’ piercing.
And in the UK it’s ages 16 that’s legal.
May be different in America or wherever you live.
Look online.

septum? in the us you have to be 18 or have parental concent.