M.L.
Hi, H.. My daughter is 19 month old, she is very social and super active. We meet other children a lot and VERY often my child is being bullied similar way you described. I tried "the gentle" approatch: describing the situation and her fillings, and it's OK when the other parent notices what is going on and disciplines aggressor. Well, most often I don't even know who the parent is( at the park's playground for example), and some kids may be truly rude. Well, my usuall reaction is immediate and loud: "no pushing" or "no hitting" , "excuse me, she is playing with...right now" or "the rule is no running, it's posted right there"( at indoor playarea). I feel that I protect her and still teach the rules.