Every regulation has some unforeseen consequences. Most of the time it's impacts are worse than the effect we wanted to regulate from the start. Us humans discard the effects we can't predict as benign even over smaller inconveniences we can see.

It shouldn't https://pubs.opengroup.org/onlinepubs/7908799/xsh/free.html

>If ptr is a null pointer, no action occurs.

We had just that. But we accidentally banned it by banning sulfur in cargo ship fuel.

How can you know that? That's also such an arbitrary number to obsess about. Setting bilionaire income tax to zero would increase total salary also.

If they could get higher paying job they would already do so. No legal immigrant dreams of working at McDonalds. No illegal immigrant would be employed by McDonalds.