In Australia you can get that $20k by working minimum wage for a year. You just need some family to provide food and shelter for that year, which might be less of an ask. Ramen & a tent would do the trick.
Also there is a government scheme where:
A) you get fortnightly welfare payments
B) formal training and a tafe certificate
C) access to mentors and resources
If you qualify for welfare and instead of looking for a job, you choose to start a business.
I mean startups. The ecosystem is poor. The Atlassian guys said they would never have started in Australia given a second chance. I have also been told that Australian venture capitalists are utterly hopeless.