Why do 90 percent of Mexicans speak spanish?

It's not accurate to say that 90% of Mexicans speak Spanish. The vast majority of Mexicans speak Spanish, but it's not quite that high.

Here's why:

* Mexico's official language is Spanish. This means it's the language used in government, education, and public life.

* Spanish has been spoken in Mexico for centuries. The country was colonized by Spain, and Spanish became the dominant language.

* Most Mexicans are native Spanish speakers. They grew up speaking Spanish at home and in their communities.

* There are also indigenous languages spoken in Mexico. While Spanish is the dominant language, there are many indigenous languages with varying levels of use.

While the exact percentage of Spanish speakers in Mexico is difficult to pin down, it is far closer to 99% than 90%. This is based on data from the National Institute of Statistics and Geography (INEGI) and other reliable sources.

It's important to note that even though Spanish is the dominant language in Mexico, there are still many diverse cultures and languages within the country.