Depression is terrible (anti-social, self-destructive, painful, etc.) but useful when it's grounded in an existential crisis... it makes people reflect on themselves and think about what else they can do or change.
They're not worries, they're concerns. Also, that resource doesn't list a single successful, large-scale deployment. Finland is considering it. (The US will never, ever have such a fanciful thing because the plutocracy prevents it, even with Bernie 2016.)
And another concern: if people don't earn money themselves, the tendency is to waste, in all regards. This tends to reinforce learned helplessness, even farther away from the brutal reality of life/business/nature.