Once you don't have to worry about not having to pay rent, not having to pay electricity etc then your appetite for risks grows. To get to that point you either need to start from a rich household (parents) or get to a certain age, have some money to support you (from previous work) and then go into entrepreneurial experiments. This is a big reason why you see older entrepreneurs embarking into that journey.
Your need for success diminishes with wealth though. A lot of founders struggle to motivate themselves to push through the hard stuff, get over the pits of depression, and to drive themselves following mistakes and rejections if they have resources to fall back on. It's a lot easier to take a month off and book a nice vacation after you've been told "no" by an investor or a major customer than it is to keep going and fire up your IDE or pick up the phone to chase another sale.
Many of the founders I've met work crazy hard because they won't be able to pay the rent if they don't. They literally don't have a choice except to succeed. That's a hell of a motivator that wealthy people will never have.