Britain to introduce compulsory digital ID for workers

I don't understand how people are able to work in the UK illegally without employers already breaking the law. Employers are required to pay payroll taxes for their employees and you need a national insurance number for the employee to do this. I'm not sure how this fixes something that should already be fixed.

Not just that but there's already the "share code" system that's used to verify status against the Home Office.

This smells a lot of "think of the children" [0].

[0] https://en.wikipedia.org/wiki/Think_of_the_children