What do you think keeps most people from pursuing their dreams?

[Lam N.]

Over the years, I have definitely noticed that almost everybody has some kind of plan like flipping a house, getting a rental, etc.  But almost all of them never got it started.

For example, in our last flip which we made a ton of money on, both neighbors on either side talked with us and told us they'd been thinking of flipping a house with their cousin/brother/whoever for years.  At restaurants, dog park, where ever.  Every time the topic of who does what comes up and people hear we are now full time investors, they always say they've been planning so-and-so forever.  

There is a couple we've been friends with for years.  They'd been wanting to house hack forever.  When they were ready to buy their first house, they actively looked for a duplex where they could live on one side and rent out the other.  They'd been living in a duplex where they pay the landlord's mortgage.  That's where they got the idea from.  So, they asked us plenty of questions.  We guided them through the process and even evaluated the duplexes for them.  Found a perfect one that was well within their price range that needed very minimal work.  Then all of a sudden, they bought a single family home.  

Why do you think most people never pursue their plan/dream?