How does Worldcoin plan to solve for people in wealthier countries not wanting to scan their eyeballs (because the UBI isn't meaningful enough)?

Likely through a long tail of value props beyond the financial incentive 

For example, apps that require proof of personhood to use them, or voting schemes that require you to verify as a unique human 

Also early adoption of new technology often happens in developed countries b/c it is seen as high status

Building /bright-moments - minting onchain art IRL | /purple #15 | FID 129 #magikarp

Rome, Metropolitan City of Rome Capital, Italy

What historical technology have been adopted in developing countries and then become the norm and high status in developed countries?

"historical" is a stretch but these guys started in Africa due to regulatory hurdles in the US:

https://www.flyzipline.com

still largely built in half-moon bay, though.

truemed.com | @coinbase | @dropbox | gazzini.com

I know the founder! 100% developed world company :)

Where did they first see adoption of their technology?

They experimented in Ghana, yes.

But to say the developing world adopted the technology first is a bit of a stretch.

The company has a partnership with Walmart and one of the only drone companies with FAA approval for consumer deliveries.

They experimented in Ghana, yes.

But to say the developing world adopted the technology first is a bit of a stretch.

The company has a partnership with Walmart and one of the only drone companies with FAA approval for consumer deliveries.

https://www.google.com/search?q=walmart+zipline