I don't think that OO code is easier to understand. I do, though, I think, find OO projects easier to understand. There's an opinionated convention about what

I don't think that OO code is easier to understand. I do, though, I think, find OO projects easier to understand. There's an opinionated convention about what code to save in which file (one file for interface of a class, one for implementation). Sometimes I think it's this, more than anything to do with language semantics, that actually drives OO adoption. When you sit down with an empty folder and a text editor, it's really easy to know where the files go.