[FireBeyond]

> But then I read about things like WorldCoin and that people who go to startup parties jump at the chance to give away scans of their retinas

Well, in the case of WorldCoin, I think there's still some pretty significant questions of why they made Africa a prominent launch market (well, there are some reasons), but in some places they repeatedly increased incentives until they were offering people there up to a month's income to give their scans. That might not be a lot of money to a big startup, but is telling that they had to offer that much to get some people to "opt" in.