Dai was born in 1966 in Chenggong Township, Taitung County. His father was in charge of student discipline at a local middle school, and he was very stern with his children at home.
戴立忍，1966 年生於台東縣成功鎮，任中學訓導主任的父親，對小孩施以嚴格的斯巴達教育。