That's going to be hillarious during the teething problems when the middle aged men in front of you in the line get adverts for sanitary towels thrown up.
I wonder if Tesco have thought this through enough!
I don't see the problem. We're all scanned by CCTV every time we go into a shop anyway.
// I don't actually understand how we will then receive this targeted advertising, anyone know? //
I think there are displays at the checkout. If the software thinks you look a bit fat, you'll be presented with an advert for slimfast or something. If you are wearing a burkha it'll be prayer mats and vitamin D supplements.
perhaps they'll give you a voucher with your receipt for something Off at Tesco's. I still don't see the point of it. They won't know who I am if I don't proffer my clubcard.