Re: It will ensure user privacy
I'll wager most of the punters in the current covid-19 environment will be paying for their booze with either credit or debit cards, so their IDs are fully recorded anyway.
I fear most people don't realize how the elimination of cash payments provides a pervasive tracking facility for everyone. Everywhere you go, at what time, how much you spend, and a fully itemized list of everything you spend it on is recorded and kept for years.
It makes the current discussions about privacy in the tracking apps a bit of a joke in my opinion (and we haven't even discussed Google's tracking).