More of a socialist plan but we are halfway there here in the US> We don't per se have income limitations, but we do have "unconditional income". We just happen to call it government assistance or welfare.
Describing government assistance or welfare as 'unconditional income' just shows you've never applied for any: the conditions are numerous. When I applied for unemployment compensation, [which I earned & paid for in advance], the process took hours, the verification of everything was stringent, and the rules were inflexible: break one, and disqualification is immediate.
I can only imagine how much worse it is when applying for benefits one hasn't earned or paid for.