it's depending where she living and what she doing.
during Covid time it's not easy to have a work. Even normally she could survive with her family. But when you love her much and you have the money you could send her monthly 6000 - 8000 thb.
the problem will be, when you reduce later or stop support she would not love you any more... 😢😢
i made same 20 years ago with the girl who is now my wonderful wife since 14 years.