Immaturity pisses me off

I don't expect everyone around me to understand how I see the world or how to process things, but I do expect them to act their age or have some form of maturity. I can't STAND when my peers or friends decide to not take a serious topic with full respect or Throwing tantrums.

YES you heard me tantrums, mind you I am a sophomore in high school. I understand some people don't know any better. At least have one decency of listening and TRYING to understand yk? If you are immature to the point I have to practically treat you like a CHILD you genuinely need to get your act right.