Childcare -stroller not allow place outside school

My child turning N1 next year, today was notify by school teacher that not allow put stroller outside school. Daily need dabao food, carry laptop bag and need hold hand with child go home. If he not cooperate is so hard to bring him home. Walking 10min home from school. My son is about 14kg kinda heavy.. Any advice? #firsttimemom #pleasehelp #advicepls