I’m Melissa, a Shopify Guru. Thanks for posting. I can definitely understand that is a lot for every order processed through your store. Currently, Shopify Payments is not available in Mexico.
There is no current ETA on this, but I will definitely send your feedback to our development team! If we do make a release, we will post about it here: https://www.shopify.ca/blog/topics/announcements so keep an eye out!
Hope this information helps! You can reach out to the Guru team https://docs.shopify.com/support if you have any questions.
Have a great day!
Melissa | Shopify Guru