[qwaxys]

In Belgium, one supermarket did exactly this.

You can even use your e-ID card to buy products with a minimum age.

Article in Dutch: https://www.colruytgroup.com/nl/over-ons/ondersteunende-acti...

[lofaszvanitt]

And they did this in mid 2022. Not bad, but the concept is a bit flawed. Hm, there is still room for improvement ;).