Interesting that the article mentions GDPR, and then launches into behaviours that are forbidden by GDPR<p>> But how could it be cheaper? well here is where it starts to get interesting. The second professional could, for example, employ a cheaper way to get your ID sent to them, maybe it gets sent via a third party. Another way to cut costs is advertising, they could get your consent to use your drinking habits for marketing purposes. Now we can just replace “shopkeeper” with “online porn publisher”.