It looks like you have to cross them both off your list:

• Thailand Bans Use of Cryptocurrencies as a Method of Payment
• According to "Regulation of Cryptocurrency Around the World":
  ^{- It might be slightly outdated!}
  
  
  • Quote from: https://tile.loc.gov/storage-services/service/ll/llglrd/2021687419/2021687419.pdf
    (cryptocurrencies are not legal currencies or a means of payment in Vietnam, and any issuance, supply, or use of them as currency or a means of payment is prohibited, and subject to administrative or even criminal sanctions).

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If you also include the intermediaries and government agencies, then I don't think you can "directly" pay everything with BTCitcoin, but if you ever decide to do such a thing, make sure to have a lawyer who knows the rules for both sides!