Lots of modern mathematical texts define counting from 0, and it might be brought up because of the engineering context of indexing convention in a language tha

Lots of modern mathematical texts define counting from 0, and it might be brought up because of the engineering context of indexing convention in a language that lets you flexibly define that. What defines counting is an initial element, often called 0, and a successor function which constructs the next number. The question is why you're doing such a construction, and if you want an identity element for natural addition.