Does my daughter's visa as a dependent on my DTV expire when she turns 20?

When applying to add your 19-year-old daughter to your DTV, her visa will typically expire when she turns 20, based on current regulations for dependent visas in Thailand. Although the DTV allows dependants, local rules often state that children can only hold the visa until they reach the age of 20. It's advisable to confirm this with the embassy for the most accurate information.