First, in full disclosure, I did things at 15 that my adult self still cringes over. Kids will be kids, and I can accept that.
With that said, whether it's some individual running people down in an
ECV, a self-centered family that thinks the queue is for their use only, an obnoxious parent whose precious little snowflake thinks it's cute to kick someone in line, a large obnoxious tour group of any nationality with little to no supervision, or any other behavior that is outside the normal bounds of decency, I'm going to react appropriately.
I'm a kind person by nature. In fact, on my last flight, I not only declined a free drink from the parent sitting behind me to apologize for their lap-seated toddler daughter kicking my seat, I offered up my iPad and the open seat beside us to keep her entertained and give her Mom a break. The difference in that situation is that Mom was doing her best and simply had an antsy little kid on a long flight.
Obnoxious individuals need to be treated like obnoxious individuals, rudeness begets rudeness, and if anyone elbows one of my little ones out of the way or knocks them down through sheer malice, this mild mannered guy is going to show his teeth and training.
It has nothing to do with nationality, group size, or age. It has to do with the fact that society is quickly devolving into billions of individuals who think only they matter.