I do not know if it’s true for all countries, but at least the USA and the UK require your passport to be signed to be valid. And I know that when I fly, I sometimes get checked if it is signed.
Is there a practical reason for this? Does the signature get checked against anything? Or is it simply that the law says a passport must be signed to be valid, so there you go?
I googled around a bit, but only found resources on how to sign, but not why it needs to be signed.
Thank you Internet hive mind!
Yes, a legal representative can do it. I’m not sure if just a notary would suffice though, at least not where I am.
Thumbprints are another possible way. Also simple marks like an X.