Does a US friend with a 6 month METV need to show 20,000 Thai baht at the airport when entering Thailand?

A US citizen entering Thailand on a 6-month Multi-Entry Tourist Visa (METV) may be asked by immigration officers to show proof of funds, which is typically 20,000 Thai baht or its equivalent in cash. Although not explicitly required for METV, it is advisable to carry this amount to avoid any issues at entry, as immigration officers have the discretion to request proof of funds from any traveler.