When ever I visit Brazil now I feel very left out for not having Pix! I wanna join the electronic cash club. Don't think it's possible for foreigners tho

It should be possible, they issue CPF numbers even for tourists if you want.

Problem is you need a Brazilian bank account... Opening a foreign bank account creates tax nightmares.

Ah, so they're leaving the money on the table. I suppose they're worried about money laundering.

Indonesia's electronic wallet have two tiers, unverified and verified. You don't even need a bank account (because most people don't), just a local number (which even tourist can buy easily at airport), with the limitation on unverified tier is that you can only top it up (by cash if you don't have local bank account) and spend it on merchant, no receiving nor sending money. There's also transaction limit but most of the population won't cross that in normal days.