Some kids act decent at home but like monsters away from home. This will come about from weak parenting where they’re not given “Marine Corps”-style child rearing. I have seen some parents who are fairly Normie, but the kids are sociopathic assholes.
The fact is that a “well raised kid” will kid around, but they won’t sociopathically bully people. @Robert Lindsay probably disagrees but that’s his choice. But my image of a well-raised kid is harsh. It would be like the son or daughter of a preacher.
Character development is very important, and it can’t be done by leaving the kids to television or video games all day. It has to be installed in them daily.