Excuse my question, if you can travel if it is necessary to travel to Mexico without the covid test or it is not necessary

On any trip outside the USA, they ask you for the codvid 19 test.

They don't ask for any evidence. Unless you have been in European countries and others for the last 14 days... You can consult the list of countries in the list provided by the airlines... But if you have been in Nashville and go to Mexico without any problem... They don't ask for anything more

You can travel without taking the covid test, they don't ask for it