Does this work for companies as well? I've only ever encountered this kind of verification as part of the Digid login process, which is only usable for government and semi-government websites. I don't think you can use Digid to prove to an online web store that you're allowed to order alcohol, for instance.

With the way Digid works, I'm not too sure if I'd trust the system that much either, to be honest. Allowing the government to track what citizens visit what websites when seems like a massive privacy infraction. There are technologies that can fix these shortcomings, but I don't think the government cares about them.