The list on the index page starts with 0, if nothing else it would be more consistent to start the counting section with 0 as well (FWIW I agree with the OP, I'm teaching my toddler to count starting with 0).
All I meant was what I said: If you're presenting numbers according to "numeric order, but with a weird exception due to the history of typewriters, which BTW your children have never heard of", then it would be simpler to remove that one weird exception. Or, to put it simpler: 0 is less than 1.
(FYI, I wasn't defending the zero on the right decision, I would prefer zero on the left)
Well yes, except they'd count to three still because they're starting on 0 and increase that with each apple.