Likely not an option for the majority of your audience, but in #Vietnam it's still pretty simple to buy Sats without KYC procedures.

We do operate a Cash Office in Saigon as well as several Bitcoin ATM outlets across the area :-)

Possibly useful if on vacation and looking to grow the unregistered BTC stack :-) 

2) Cashing out BTC (Lightning, On-chain, Liquid) to either cash (currently 5 cities supported) or bank wire (any valid Vietnamese bank account) is also supported.

Which allows visitors to live in Vietnam pretty easily without the need for a bank account :-)

https://m.primal.net/KYoS.png