I'm more pessimistic though on outcomes. I don't think UBI solves anything, just kicks the can down the road a little bit longer.
Money exists because of scarcity, there isn't enough for everyone. Money helps us decide who gets what, prices are relative and fluctuate as supply and demand change, that's a very good thing. If I think I can get a better deal elsewhere, I'll take my ball and go home. If I want it bad enough, I'll work harder (or sacrifice elsewhere) so I can afford to get it.
Baristas aren't paid well because anyone can grind and brew their own coffee. Or just buy a Keurig which costs less overall. Contrast that to say, a surgeon who is paid well precisely because most people don't want to operate on themselves.
The issue I have with UBI is that you still have the same number of people chasing the same number of scarce resources/houses/products. So prices will rise accordingly. Pretty soon it becomes "UBI doesn't let me be a musician and live the lifestyle I want/deserve". Complaints that UBI doesn't pay well enough, big business, etc.
I'm 100% for a better social net to catch those who have stumbled/fallen. But the arguments elsewhere in this thread conflate that with being able to pursue the life of your dreams free of consequence. That's the heart of the distinction I'm making here.
To me, you can't chase your dream without asking yourself "How hard am I willing to work to get what I really want?" Achievement is more satisfying when it's earned then when it's handed to you. A well lived life is about playing the hand you were dealt well, rather than complaining that you weren't dealt a better hand. I think that's the difference between having the "right to pursue happiness" versus the "right to happiness".