The NIST link talks about the EU version of this. IDK specifically if the British govt has their head up their ass or not and I’m sorry if they do. The EU and industry standards all support selective disclosure today (there are at least mature standards drafts) and people are working on incorporating ZPKs. The thing Discord does is how you have to solve this problem if you don’t have digital ID. And unfortunately it will exist for quite a time to fill the gaps until digital ID fully proliferates.