Double vaccination (or quarantine) is a requirement for entry to Thailand. The proof of vaccination is with immigration, but it wouldn't come as a surprise if yet another form of proof of vaccination is required to be admitted to restaurants.Can you enter a 7-Eleven or supermarket without proof of vaccination? The microwaved meals in 7-Eleven is something that can come in very handy once or twice a month (hungry after disco, or other situations where no other food is available).