get this right, it genuinely shocked me too. some people just... look at the product, and then go "i'll buy that!" and then they buy it. they are not even making a conscious choice when doing this. their brain intuitively tells them "yes, this one" and they don't have to think it out.
more often than not, the product that wins is the product with the better or "flashy" packaging and style. that's one reason why they spend all that money on advertising and branding. to me, it's sooo strange. why would you not read up on your choice beforehand, or at least investigate each packet to check for food aversions, find out which one is the best $/unit value, etc? why should the packet the food is in, have any substantial bearing on your choice of purchase? (there are edge cases where the packet matters, i know)
to answer your question, yeah there is a lot of risk-takers out there!😱