Clearly, you've never lived in Germany or other places that still have data caps and slow and unreliable internet connections.
Yes, 4GB of unintended traffic can absolutely wreck someone's finances.
Or places with collateral damage due to failures of German ISPs and state... That is many other parts of Europe while roaming... 4GB is significant cut of the roaming data allocated...
Or places with collateral damage due to failures of German ISPs and state... That is many other parts of Europe while roaming... 4GB is significant cut of the roaming data allocated...