Despite his lifelong dedication to the public good and his defiant stand against the powers that be, Sim hasn't neglected his own children's education, with two of his nine children gaining professional training and dedicating themselves to educational and cultural work in the Chinese community in Malaysia.
雖然一生戮力從公、兩袖清風，也不忘子女的教育，9 名子女 2 位留學台灣、紐西蘭，其餘都在大馬國內獲專業訓練，投身於華社的文化教育工作。