It reads like a bad attempt at trolling. A better version would have been 5-10 paragraphs on why 0-based is better, and then hit the reader with the punchline. Instead, it's a very short piece that jumps straight to their reasoning that they're confused by things every grade schooler understands and so 0-based is better. Which is not a terribly persuasive argument.
If they intended it to be a serious argument for 0-based indexes, they should not have admitted to being less intelligent than most 5-year-olds.
> i was trying to encourage you to use 0-based indexes so i failed
I'd say you never actually tried. Your argument was unserious.
It was simply: "1-based indexing confuses me". Even if people try to treat it as an actual argument, it's weak. Spanish confuses me, should Spanish speakers switch to English on my behalf? No. I should learn Spanish, get an interpreter, or use tools to help me converse with them. And 1-based indexing is much simpler than Spanish. If it actually confuses you then something else is going on. Every 5-year-old I know understands it, that's a low bar to beat for an adult.
Go see Dijkstra's argument for 0-based indexing, that's an actual argument. Yours was not.