There is a reason why I said what I said about AI, it's something else I do know a fair amount about since one of the businesses I run is an AI company, if you ask ai about information it hasn't been trained on it will make things up, if you are not specific enough, it will make things up. (Also dont blindly trust AI output is good advice, also dont blindly trust information people say, information in books etc, you take the information, you read more about it from multiple sources and speak to people with experiance in the subject... this is how we learn new things ) AI (LLM's) are basically nothing more than fancy predicitve text.
Who said anything about months of experience, there are plenty of people in the industry that have over a decade in experience and you also missed the point of that comparison to start with, the entire point was that you market to the audience that you are looking for, but with little to no understanding of marketing that obviously went over your head. Gucci markets themselvs as a luxery brand, they attract customers that like to show off the appearance of wealth, that is why they are able to charge those prices, it's called brand positioning.
What stops success is listening to people that have no idea what they are talking about. Can models be successful without marketing, kind of, there will still be marketing done for them, but it wont be them doing it, it would be people talking about the model ie/ word of mouth marketing. But the question is why would you hope something will happen instead of taking advantage of everything you can to ensure that success? Marketing is what gets as many eyes on room / product / service etc as possible, not just stipping off and doing a show for free because you saw someone else doing it and getting tips.
Anyway, I'm done. Your trying to argue about a topic you have no experience in or knowledge of.