I think the goal of earning passive income has the luster of earning steady money by not continuing to put forth the same effort.
There are many legitimate jobs that produce passive, residual or recurring income.
Writing is a great example. I write something once, and the more it is viewed or purchased, the more money I get without writing any more. If I do write more, the idea is that it compounds on top of my previous writing, it is not simply doing more work for the same pay I was earning before, it is adding to it, increasing my pay, and I think that is the attraction.
The problem is many will not stick to it long enough to see the best results, which come later, much later down the road. I think a numbers example helps the best.
What if I Told you that if you worked for 30 minutes a day, I would pay you $0.01? and for every 30 Minutes you worked I would increase your pay by $0.01? Now that sounds like a horrible deal, but lets let the numbers play out.
at the end of 1 year, your pay will be a measly $3.65 per 30 minutes, but you would have earned $660.66.
year two, you guessed it, your pay is $7.30 per 30 minutes, but guess how much you have earned total in two years? $2,668.15!
you can see that if we keep going with this, how significant that adds up. and that is only adding $0.01 per day to your total.
That is what is so attractive about passive income. with regular work, you work an hour for a wage, and its the same wage. with residual income, your work is added to your past work, and the idea is to increase that earning over time putting in the same work.
So if you can stick it out, and work hard(yes passive income does not mean easy income), you can achieve the passive income goal!
I have written a good amount of articles on the topic and on personal finance in general, so go check them out to learn more.