$12k is the cited number that you see a lot in basic income discussions. That's just over the poverty level. That's not enough to live on and it's practically a bonus for some members of this site. It's not enough to do anything with.
But just to do that in the US you are talking about 3 trillion dollars (300 million x $10k for easy math) that you have to find in the budget. Now basic income advocates will say you can make up some if not most of that by cutting welfare programs, but given the nature of welfare programs - good luck. That stipend is also not enough to pay for healthcare, so you can't cut that.
How exactly do you convince a nation which already isn't willing to pay for healthcare to pay for basic income, too?
I'd love to be wrong, but I've never seen any numbers that are workable, especially in a political climate anything like today.
This will never fly politically. You think lower-middle class people (the vast majority of the country) are going to agree to that?
I love the idea of basic income, but proponents need to a) make much, much better economic arguments, b) stop being so afraid of numbers, and c) get a dose of political realism. We do not live in a Star Trek universe when you only need to convince one wise leader like Captain Picard or Janeway.
If you're American or based in the USA, that means accepting the fact that a large chunk of the population adheres (consciously or not) to a particularly stark version of Calvinism that says wealth is a sign of God's favor, poverty is a punishment for sin, and a whole truckload of authoritarian correlates. Considerations of rationality, economic efficiency, and equity all factor into policy discussions in the US, but are by no means dominant - hence the perennial proposals to impose drug tests on welfare recipients despite the abundant evidence that this is a complete waste of time and money in the places where it has already been tried.
I've lived on $30k and that takes a lot of sacrifice. It's hard for me to imagine $12k. Even a ghetto $500 a month apartment means you're left with $500 for food, transport, etc. Ugh. Car insurance and gasoline cuts out a car. Public transport can still be expensive. You're either walking or biking and probably renting a bedroom? Someone's subsidizing your diet and/or you are eating lots of cheap food. It'd be interesting to hear more about how you pull it off.
Good luck with your efforts!
I have an immense amount of stress from coming up with the $1000 every month. It's hard to predict, but I suspect without that distraction I would be further along in my process. It's been slow, although I'm almost done with this phase.
Wait, if he got that money in basic income then he wouldn't have to work his day job as much, giving him both more time and money to bootstrap his business, yeah?