Been away for awhile- sorry.
In Mexico you can find 120 hr. flight instructors. Do you seriously believe that's accaptable? Written exams are administered completely by the flight school- not a governing agency- it wouuld seem obvious to me that there are no standards, but there is a personal interest by the school to get the students passed. As I remember, commercial and instrument by 150 hrs. Also no ATPL in Mexico. There are others, but don't remember them now.
After talking to a number of flight schools here and two friends going thru their private pilot training, sent my grandson to Canada for his training.