Germany’s advice for normal times is to be stocked up for 11 days. 3 Days compared to that is laughable even so it is better than 0.
You can’t buy a car that had its model registration in the EU after 2019 in the EU that hasn’t a SIM Card installed as it is part of an EU legislation.
There is no German text when I look at the OP.
What exactly are you talking about?
The video is from an American expat living in Germany with her family. Her video is originally in English.
YouTube started a feature where they auto translate videos to your assumed language. Might that be the case here?
Nope the advice of BBK (Federal office of civil protection and disaster assistance) recommends to have consisted stocks for 11 days including water for drinking, basic hygiene and cooking.