Britain to introduce compulsory digital ID for workers

So I currently have;

A National Insurance Card (needed to get a job), drivers license and passport, one of latter is also needed (in practice) to get a job.

Why would a brit card help us reduce the number of people working illegally?

The only notable 'employers' of illegal workers in the UK are American tech firms Uber and deliveroo (doordash) because they allow driver substitution without verifying that the substitute is legit. That should be made illegal and then fine them into the ground for anyone who slips through. Brit card doesn't help and is a distraction.

It has nothing to do with cards and everything to do with data.

But the person you're replying to, just explained to you, how the government already have the relevant data. So it's clearly not about data, because the government already issue his NINO and passport

Edit - I mean, just play it back in your head. The PM is probably watching small boat arrivals and reform polling numbers like a hawk. And here's his idea to fix both problems, and you're saying, actually no, the PM is just doing this to get data on where I go to work, even though they already have my PAYE details

I think it's 100% about the data.

I beleive that Labour see this new ID system as the solution to all the age verification questions now required by the Online Safety Act. e.g. access to things like Reddit, BlueSky messaging, Spotify.

With that in mind I think new data you're talking about will be enhanced tracking and monitoring on everyday online activity of UK citizens.