This surely talk of parenting issue It is very clear the child has witnessed violent issues either in person or tv or game

hi I can understand your emotions for your son. this the age the child learns a lot through observation either it might be language, expressing of emotions, behavior, style and different thing. I can understand the parents commitment for different thing, but parenting is most important job until certain age for children. everything they learn from what all had been exposed to them. it requires better molding from parents. Gradually find out what all situation the child behaves rudely. In mean time please consult any psychologist can help in parenting skills. take care.

I would like to know how much speech has he developed? And how is his response to people in general does he laugh smile or is he avoidant. I strongly recommend a direct consult so that I can ask you a few questions and then give a detailed individualised parent training plan.