Let’s get this straight. Agave is a succulent, one of great variety. The plant that makes tequila isn't the same one that yields in mezcal, for example, though every tequila is technically a mezcal (but not the other way around). Preparation aside, raw inputs and regions where each is produced are very distinct. Much like with fine wines - each has a unique terroir, you just can't lump everything simply into agave - el maguey.