My experience on this has been a little different. Within my circle of friends/ acquaintances a lot of the people who have taken big risks, including startups or other personal ventures have been people who have only been able to do it knowing that they have the 'basement' option if it all blows up.
These aren't the particularly wealthy ones, most of whom have followed quite conservative paths, but the ones who were confident they wouldn't get a "well it's your problem, you should have got a real job" response.
These aren't the particularly wealthy ones, most of whom have followed quite conservative paths, but the ones who were confident they wouldn't get a "well it's your problem, you should have got a real job" response.