This isn't true. Many successful, profitable businesses were started by just surveying the landscape and being better/different to something pre-existing.
I think the process you're describing is a lot more targeted and. methodical than the vague question of "what business should I start?"
The person who comes forward with prompts like "I'm a full stack developer, what problems do you think I could solve with software?" or "I work in hospitality, what's on your wish list for when you go out to eat/stay at a hotel?" that's going to produce a lot more useful feedback.
When one asks "what business should I start? I want to quit my job" it comes across to me as "Work bad, how do I plant a money tree in my backyard?"
The person who comes forward with prompts like "I'm a full stack developer, what problems do you think I could solve with software?" or "I work in hospitality, what's on your wish list for when you go out to eat/stay at a hotel?" that's going to produce a lot more useful feedback.
When one asks "what business should I start? I want to quit my job" it comes across to me as "Work bad, how do I plant a money tree in my backyard?"