Why is most "side hustle" advice on the internet so out of touch?

Have you noticed that whenever you look for ways to make extra money, you get hit with the exact same advice?

• "Start dropshipping," "learn to code," or "invest in real estate."

If you are a teacher, a nurse, or a parent with only 10 hours of free time a week, this advice is completely useless.

I got so frustrated by these generic "gurus" that I decided to build a solution: BuildWealthPlan.
It uses AI to match your actual skills and free time with realistic opportunities, and gives you a 12-week roadmap to get started.

I'm curious about the PH community's experience: What is the worst or most unrealistic "side hustle" advice you've ever received?
And how do you currently balance passion projects/side incomes with your main job?