Do you mean are sombreros mandatory in mexico
I have never seen anyone in Mexico wearing a sombrero. And I lived there for a year.
If you meant to ask if sombreros are mandatory in Mexico, then yes. It is required by Mexican law that everyone entering Mexico must posses at least one sombrero with them. Failure to comply with this law can land you 10 WEEKS in a Mexican prison fed nothing but Nachos with stale cheese.
If you are actually going to Mexico, go order a sombrero for your own sake.
...what?
