through his teaching and personal example, rosenfeld inspired a large percentage of his students from non-religious and modern orthodox homes to become religious. dozens of boys transferred from public school to yeshiva, and rosenfeld arranged for children to attend religious summer camps. a group of boys aged 9 to 15 spent each shabbat together in the synagogue and came to his house on shabbat afternoon to hear a lesson from him. some parents were resistant and even hostile to rosenfeld's outreach efforts, accusing him of "brainwashing" and "kidnapping" their children, but he persevered.