It's definitely most sensible to apply a minimalist philosophy when starting your hair journey. It can save decades of extra time, money and additional need for frequent clarification shampoos.
So if you're a newby, no need to inundate yourself w/a bunch of prospective styling agents all at once. The idea is to give co-wash only a chance first, then move on if that's not adequate IMO. I know plenty
of ppl w/curly hair who either use the conditioner only method, or use co-washing plus an oil as styler (being mindful that even the basic co-wash only method probably will entail using an occasional clarifying shampoo). That said, I agree w/much of what Wurly has said. (I think we're agreeing more than not, actually.)
... And one more thing, you may find that even co-washing isn't something that works for you. You'll find these things out