"Blame".......IMHO, the person(s) or thing(s) that may or may not be "responsible" for an issue, problem, accident, etc....shouldn't be our first and foremost concern. If necessary, this fact can always be addressed and/or dealt with more appropriately at a later time.
What is most important, it seems to me, is attending to the issue. Our concern and energies need to be focused on helping to correct or to repair damages.
In terms of your particular question, it's fair to say that family, school & community may all play a part in coming to terms with reasons for a child's "troublesome attitude."
I will add that there is a long list of other possibilities, depending upon the child, his/her age, as well as what exactly this "attitude" is. It's no secret that child development experts, pediatricians and behavior scientists have found a direct link between some disciplinary issues and "Diet." Within this same area, "Allergies" can sometimes wreak havoc in children, affecting behavior.
In other words.....all those you mention: Family, teachers & community members are vital connections to being alert and aware of all the many possibilities involved in creating (so to speak) an issue requiring thorough examination for each individual child.
Unless there is blatant child abuse and/or neglect involved...."blame" isn't a primary concern. The vast majority of adults with any relationship to a child, most often wish to be part of the solution, as opposed to being part of the problem. Pointing fingers is fairly useless.
Excellent question. I look forward to reading the variety of responses this will yield.