That's an interesting video. One thing I've noticed, is that when you pitch your idea to people, a LOT of people will tell you why it's a terrible idea and why it won't work, and why they wouldn't do it. It can be healthy to talk to those people just to get an idea of either a worse case scenario, or get a feel for the people who might not utilize your business and why. However, it's very important to realize that those same people often don't start businesses of their own. There are always detractors from a ideas, even good ones.