I did meet my friend a few more times during her stay, mainly in her house, and asked her about her parenting approach. She told me that she believed in a strict upbringing for children – though she herself was not raised in such a manner – and she kept a bamboo cane for her daughter.
She scolded and warned her daughter whenever the girl stepped out of line. My friend’s first line of correction was certainly strict gestures and stern words, often with the threat of the cane. But when enough warnings had piled up, the cane would certainly be seen to be used.