Signalling still works, so you can let the trains continue to a safe place like a station and then not let them leave until the radio issue is resolved
Wero doesn't change that as it's just another interface for SEPA instant payments. In its current version, it just adds phone numbers as an alias. Via the phone number you can also find out their full name and, after a transaction, their account number, as long as they've enabled Wero for their account.
In the context of age limits, that is wrong. The German eID has a zero knowledge method of proving that your age is above a certain number without revealing anything else. That method has been around for like 15 years and these days, thanks to smartphones with NFC readers, is quite user-friendly.
In practice it's basically not used anywhere except for cigarette vending machines because it's much simpler to hire some dubious third party "wave your ID in front of your camera" service
Edit: mandatory age verification is still an atrocious idea for a number of other reasons, just to be clear
How does it force YouTube to make a deal? They could still block all copyrighted material that they didn't have a licence for, they're just not allowed to falsely block anything.
Thankfully said EU law includes a part that it's forbidden to block content for copyright reasons if the copyright claim is invalid. It includes ways for NGOs and users to go after companies that overblock. How this will actually work in practice is unclear since it's obviously an impossible requirement but some NGOs like the German GFF are already collecting cases and are looking to take legal action (see e.g. https://freiheitsrechte.org/aufruf-illegale-sperrungen/ (in German))
> Even very close to big cities like Frankfurt, having an uninterrupted phone call is a difficult thing to have.
The German Minister for Economic Affairs has stopped taking calls with foreign colleagues during car trips because he was too embarassed by the constant interruptions...