Yep... and to make it worse, nobody is trying to push them towards looking at privacy-preserving age verification: instead technologists try to convince them that they just shouldn't regulate anything. Which... may not work so well.
Registering a phone number with the official company registry is sure to get you a scam call within the hour. People will come up to your house later to sell you power contracts you don't need, phone numbers you never wanted, and they will lie through their teeth to forge your signature if you don't agree. If you're unlucky, you'll be fighting a handful of scam companies in court within the first year, charging you thousands every month, because B2B contracts don't have the kind of protections customers have.
The only way to live a somewhat safe life as a small business owner is to have a dedicated phone number you never answer and a dedicated post office address where nobody lives.
These kinds of requirements made a lot of sense thirty years ago, but nowadays, with billions of people able to abuse every bit of information you publish instantly from anywhere while you're asleep, it makes a lot less sense.
In theory this documentation can be used to prevent scams and crimes, but actual enforcement of people's identities has become a problem, and the criminals have plenty of unsuspecting family members, homeless people, or mentally handicapped adults they can pressure into signing papers.
It isn't a stretch to imagine that a small business owner literally doesn't have enough time in their life to maintain their own health and run their business. There are some pretty grim stories out there, I can tell one based on a friend of mine who was working ... I think 70 hour weeks. Sounded rough. It isn't actually crazy to say they may not have an hour free to figure out what form they need to fill out and where to file it, or that they'd be too sleep deprived to get it right. Assuming that this thing is the only thing they need to disclose and there aren't any other pieces of paperwork that need filing (which we all know there will be).
Sure if they have to they'll probably figure it out in most cases, maybe it is trivial. But the businesses where a straw broke the camel's back don't exist any more to point at as evidence. It is hard to know.
[0] https://www.grumpy-economist.com/p/the-cost-of-regulation
Basically, you have no privacy if you start a small business under these kinds of rules.