The Talmud (Shab., chap. II) teaches us that הויין ליה בנין תלמידי חכמים. In other words, only teachers and the yeshiva environment have a key role in the development of their sons as ת״ח. But why did the Sages specify נר חנוכה, and not, for instance, tallit or tefillin? I suggest: because Hanukkah comprehends two complementary principles: (a) the spiritual. As Zechariah proclaims in the haftorah for Hanukkah, כי לא בחיל ולא בכח כי אם ברוחי אמר ה׳ צבאות. This ברוחי element is expressed in ת״ת. b) Leadership. The victory of the Hasmoneans over the Hellenists... The נם מלחמה (as in על הנסים ובהפסיקתא) and not only in the נם שמן (as in גמרא במה מדליקי ן).Your sons are getting both here—talmudic scholarship as budding ת״ח, and training as future leaders of the Jewish community. Thus, when parents understand and practice נ"ח, they are blessed with children who are ת״ח in the broadest sense—leaders as well as scholars.This requires parents to be role models, if possible—"learners" and "doers" or leaders; failing that, but equally effective in creating the environment for our future scholar-leaders, is the sense of values you implant in them: respecting and reverencing ת״ח, and admiring and following authentic leaders of the community.