I believe it is about personality.
I am quite fiery now, but as a child and teen, I never argued with my mum. My sister, however...
DS1, 10.5, would argue with himself if possible. Ever since he could talk, he has been pretty argumentative. Now he is a pre-teen, he has become more shouty. We just send him to his room or remove things, and you can still hear him trying to get the last word
. Sometimes I don't take the bait, other times I do, but I am getting better at ignoring him when he starts.
DS2, 6, is a different kettle of fish. Hates shouting or arguing, although will stick up for himself when needs to, has always been the quieter one and is very complaint. DS3, 5, will try his luck, but gets short shrift, so understands what is expected of him quickly
.