If Thailand is too difficult, choose any neighboring country and cash out at physical shops, they are not that hard to find.
Or just open a bank account and do P2P, or even combine them and do both. The fees are minimal.
For example: P2P USD from local bank to ->USDT cost today 0.18% (would be 0.1% but I dislike merchant KYC), cashing out at physical shop I get an exchange rate that's 1% higher than when exchanging dollars in cash. I haven't used an ATM for a year now (I dislike giving 2% fees plus ATM fees to the banksters). Instead I just send it from the bank straight to a P2P merchant, receive USDT and cash out locally. Practically, I even make 0.80% profit every time I do this to fill my wallet with fiat money.
Oh, coming back to Thailand: when entering the country one is allowed to bring $20,000 in cash per person without any SOF. I guess it should be sufficient to cover any living expenses for 2 months for most of the people, even >1 year for some.
Disclaimer: no financial or tax advice, do your own research, everything is just imaginary for amusement purposes.