We are willing to sacrifice security for convenience to be able to do business over the phone easily. Some of the glaring weaknesses that are common in the US, such as using social security numbers, dates of birth, mother’s maiden name, or last four digits of credit card as a form of “identification”, are rare in other countries where business over the phone is not as common or businesses are more paranoid.
In Mexico, if you want to do almost anything related to your bank/utility/government/etc. account, you have to go to a branch in person and bring photo ID. Sure, you might fake a photo ID, but that increases the barrier and risk greatly compared to fraud over the phone.
(On the other hand, many people in Mexico are victims of bank fraud that are perpetrated by bank insiders, so things are most definitely not perfect there either!)