Chinuch Hora'ah of the Day:
The Torah was given to Yisrael in the merit of Jewish children: “Our children will be our guarantors”. In each and every place, people should be aroused to make efforts to bring all of the children of Yisrael to shul during zman Matan Toraseinu in order to hear the Aseres HaDibros, including the smallest children as well.
... In order to ease the burden of bringing the entire family to shul at once, especially when it is necessary for someone to stay at home, it is possible to divide the shul-going for the purpose of hearing the Aseres HaDibros into separate times, either by attending two shuls that read the Aseres HaDibros at different times, or hearing it at two separate times at the same shul as is done in some congregations.
What’s more—and this is the main thing—is to explain to children the great importance of receiving the Torah and the need to prepare to receive the Torah in the appropriate way. Even though the giving of the Torah is by Hakadosh Baruch Hu... Hashem desires that Bnei Yisrael make preparations to receive the Torah, so that the receiving of the Torah will take place in the most complete way possible.
(Hisvaaduyos 5750, vol. 3, p. 252 )