Is it necessary to sign the passport signature box?

If you look at the passport signature, there's the signature partYo

Is this mandatory to sign?

I didn't make a signature, so I was wondering what to do.

1309 2018-01-06 Lady

That's a must

Lady 8 years ago 0

There was a time when there was a problem during immigration, so I did it because the airport staff told me to do it
It's better to do it in advance

Gentleman 8 years ago 0

You have to do it
I heard that if you lose it without signing it, it's registered as Interpol, so immigration is very difficult regardless of country

Lady 8 years ago 0

It's a must, so it's good to make it now

Gentleman 8 years ago 0

This is a tip, but if you have a credit card, it's better to match your credit card and passport signature

Gentleman 8 years ago 0

Thank you for the detailed explanation

Lady 8 years ago 0