Whenever someone gains something new, they would naturally be itching to test it out. This also applies to learning new skills. Everyone wants to be able to have more combat skills than other people, though actually obtaining it is a different story. Many beginners who train for a short duration in combat sports or martial arts have not gotten rid of their ego yet, and have not yet reached a level where to use their skills against the untrained could be considered abuse.
As a result, these individuals are less likely to try to de-escalate situations because they are itching to use their recently obtained skills. There is a reason where you often do not see highly skilled individuals in videos.