why my 3yrs old boy play at home with any kid but don't play with school kids why??? and so naughty at home but calm in school

A. Mam actually the friends that your child plays with our probably old friends known friends your child must have been seeing them from the time of birth from the age of one year or six months there is a huge comfort zone and the child to understand the other person to be comfortable and maybe your child is child shy by nature and that is why this is happening