Everyone should implement passive income streams because it's the path to true freedom. Freedom from needing to work daily. Freedom to travel where you like. Freedom from worries about money.
In the past it required a fair amount of money to create passive revenue streams in real estate or stocks but the Internet has changed all that. Hubpages is a good example of an investment in passive income that requires nothing more than time. And just about everyone has some time to spare here and there, enough to create quality hubs slowly but surely.
And even if you never achieve 100% success you'll still see huge benefits from achieving less, even 10% success will enhance your life in so many ways!