I get the impression you don't take too kindly to grannies.
You are also extremely presumptuous that grannies do their own banking.
Think you will find, if granny is lucky enuff to have a ATM card, the kids are doing the legwork.
Come back again when you reach granny age and receive 600 baht per month from the govt.
And remember, it is a forum, not all people are whiners.????????