my son good boy but some time he very rude and possessive for his things why?

A. Kids are possessive about their things a lot of kids behave like this because when they are the sole owner for a thing for a particular time about them and that is a very natural thing and being rude I don’t know in what way you’re finding the child but sometimes they also get annoyed and respond in a particular manner which is totally normal because every person has its own temperament even kids have so sometimes when they respond you may find it rude but is that you have to understand the child is also filled up with the mark which is why the child is behaving like this