Well, different trade offs there. On the plus side, sounds pretty simple. On the other hand...

Digital certification from the gov sounds a lot like "digital ID", which has run into considerable resistance in the UK and EU in just the last few months. As a general observation I find most EU citizens I interact with much more trusting of government than ... well, any other group of folks I have interacted with (I have the privilege of having lived and worked in S. America, N. America, sub Saharan Africa and now an EU country). If it does not fly well here, I don't think its general solution that most people would be comfortable with.

https://blogs.lse.ac.uk/europpblog/2025/10/09/britcard-uk-di...

Having lived in borh the UK and Poland I was very surprised (given history) to find how comfortable, in comparison, Poles are with ID requirements, tax ID to join gyms and football clubs compared to the UK whicb still resists mandatory ID. There does seem to be a UK EU divide here