I think if you could see close-up how these systems work now, you'd be convinced that it's completely not worth the cost in practice to try and figure out who "deserves" each of the many, many special benefits/allowances/exemptions available (plus it's incredibly difficult for potential recipients to figure out what they're eligible for, plus it imposes those costs on the people who aren't eligible, but end up having…
More important than an isolated case in a jar, what you need to care about is immigration: any Southern European nationalist will decry your policy as a potential tsunami from Africa. The lack of tension between the oil-money-infused Norway and its neighbours are striking when you compare that to Irak and Kuwait; at best, they associate the higher-priced-better-quality Statoil gas station with Norwegian snobism (I didn’t notice any snobism).
The significant economic success of Finland seems to favor the model. It helps that their chosen field of specialty, video games, is a complex, creative endeavour where success is fleeting and hard to reproduce, revenues are spectacularly unbalanced and business models a constant struggle. This means that most of the ‘idle’ youngsters are actually creating something: playing and learning what makes games cool, or starting their own fan-art, mods, league, reprise… the stepping stones of creativity.
Same thing in more Southern countries: it seems to cost roughly the same to pay someone to stay at home and grow their garden rather than to pay an industrial conglomerate to stay and keep on hiring them. Job insurance is regularly described as the largest Angel fund.
The closest to an MVP you’ll get might be a small state, say Iceland, that has something similar already. The real issue is not product, but interoperability: what happens when you have migrants, double-nationals, and is it safe to end up with a generation that grew up not knowing anyone who works at all?
You might consider a different form of it, with some voluntary civil service to teach basic skills (say, open to elderly and handicapped, substitutable with pregnancy or child-rearing) and make that life revenue a retirement from service, or stipend.