I am always shocked by the general lack of awareness people have about world intricacies.
Social welfare, fiscality and related issue in modern developped countries is one of the most complex systems I know of. I am 100% serious. It's a huge mess of rules, exceptions, directives, conflicting aspirations, unforceable & not unforceable || not unforced rules, outdated scheme, 0,1% population targeting welfare, federal, state, regional, city size rules and much more.
It crosses to healthcare, food, housing, education and more.
This whole mess was built bit by bit, step by step, over decades.
Thinking "we could send everyone a check" is right down heresy to anyone having truly worked aroung these fields.
* Else the check amount is the same for everyone and good luck to 4 kids families in high rent area
* Else the check is calculated depending on all the above factors and this system will never roll out (check Obamacare implementation issues)