I'm pretty sure it's quite possible and easy to create an email address, be it from gmail or another email provider. That email address will be valid and acces

I'm pretty sure it's quite possible and easy to create an email address, be it from gmail or another email provider. That email address will be valid and accessible as long as you have internet access. You can travel, use Wi-Fi or cellular data, and it will work. You can create a new email address for free. In that context, getting a phone number is much more limited and not free (you need to pay for a voice plan, etc.). And your ability to use said number from other countries (roaming) is limited and expensive.